Garbage disposal device

The invention discloses a garbage disposal device, which comprises a gasification reaction bin, a cracking gas exhaust pipe and an oxygen supply device; the gasification reaction bin comprises a feeding box, a reaction containing box and a waste receiving box; the reaction containing box is of a truncated cone shaped barrel structure with the radius gradually reduced in the vertical direction; thetop of the reaction containing box is communicated with the feeding box; the bottom of the reaction containing box is communicated with the waste receiving box; a material filtering sieve plate is arranged at the joint of the reaction containing box and the waste receiving box; the reaction containing box is communicated with the oxygen supply device used for introducing oxygen; and the feeding box is communicated with the cracking gas discharging pipe for conveying gas generated after incomplete combustion of materials. The garbage disposal device disclosed by the invention is used for carrying out pollution-free tr