Kitchen waste crushing and screening device

The utility model provides a kitchen waste crushing and screening device which comprises a base and a crushing and screening device body arranged on the base, and the crushing and screening device body comprises a barrel rotationally arranged on the base, a screening device body arranged in the barrel and a crushing device body. The kitchen waste crushing and screening device is reasonable in structural design, the first screen, the second screen, the first crushing device and the second crushing device are arranged in the barrel, kitchen waste is crushed and separated step by step, and the kitchen waste crushing and screening efficiency is greatly improved; the rotating direction of the barrel is opposite to that of the first rotating shaft, so that the crushing efficiency of the second crushing device is greatly improved; convex teeth I are arranged on the inner wall of the barrel body, so that the crushing efficiency and the crushing effect of large particles in the kitchen waste are improved; the cleaning