Jesus didn't use the word hell but Gehenna. Gehenna is a literal place.
The Bible doesn't speak of a hell in an afterlife. The only afterlife the Bible mentions is the Resurrection. One is either alive or dead. There is nothing in between found in Scripture
Revelation reference the hell in the afterlife.
The first time is about Jesus having the keys to hell and death.
Revelation 1:17 And when I saw him, I fell at his feet as dead. And he laid his right hand upon me, saying unto me, Fear not; I am the first and the last:
18 I am he that liveth, and was dead; and, behold, I am alive for evermore, Amen;
and have the keys of hell and of death.
The significant reference is how hell gave up the dead that were in hell to be judged at the Great White Throne Judgment.
Revelation 20:10 And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.
11 And I saw a great white throne, and him that sat on it, from whose face the earth and the heaven fled away; and there was found no place for them.
12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.
13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
14 And death and hell were cast into the lake of fire. This is the second death.
15 And whosoever was not found written in the book of life was cast into the lake of fire.
Reads to me there is a hell in the afterlife where the spirits of the dead go to.
And then there is this reference about How God is the God of the living as if being the God of Abraham, Isaac, and Jacob means they are living in the afterlife even though they are dead among the land of the living as God is the God of them still.
Matthew 22:31 But as touching the resurrection of the dead, have ye not read that which was spoken unto you by God, saying,
32 I am the God of Abraham, and the God of Isaac, and the God of Jacob? God is not the God of the dead, but of the living.