Uniform closed feeding device of small garbage incinerator

A uniform and closed feeding device of a small garbage incinerator comprises a feeding temporary storage bin, a garbage shredder and a feeding screw, the bottom of the feeding temporary storage bin is communicated with the feeding end of the feeding screw through the garbage shredder, a spiral blade of the feeding screw is located in a feeding screw shell plate, the feeding screw shell plate forms a gradually-shrunk cylindrical structure, and the feeding end of the feeding screw is connected with the garbage shredder. The discharging end is thin, and the spiral pitch and the diameter of the spiral blade are gradually reduced from the feeding end to the discharging end. The feeding process can be closed through materials, external air can be prevented from entering an incineration system or smoke in the system can be prevented from overflowing into the atmosphere, safety risks are reduced, and the incineration effect is prevented from being affected; by optimizing the feeding spiral structure, the pre-dehydrat