Garbage incinerator

The utility model discloses a garbage incinerator. Wherein a crushing chamber, a hydrothermal chamber, an incineration chamber and a smoke treatment chamber are arranged on the furnace body; a discharge hole is formed in the incineration chamber; the outer side of the furnace body is rotationally connected with a furnace door matched with the discharging hole in position. Fan is connected to furnace door, a cross rod is welded on the outer side of the furnace body; a reel is rotationally connected to the cross rod; a drawing wire is wound around and fixedly connected to the reel, the other endof the drawing wire is fixedly connected with a handle, the handle is welded to the furnace door, a pressing rod is rotatably connected to the outer side of the furnace body and located below the reel, a screw is arranged below the pressing rod, the outer side of the screw is sleeved with a partition plate in a threaded mode, and one side of the partition plate is welded to the furnace body; therefore, the oxygen inlet a