Spiral material conveying and sorting machine for kitchen waste pretreatment system

The utility model discloses a spiral material conveying and sorting machine for a kitchen waste pretreatment system, which comprises a sorting box with an open top end, a box cover connected with the top end of the sorting box in a covering manner, and a waste throwing port arranged on one side of the top end of the box cover; the screen partition plate is fixed to the open end of the sorting box and divides the internal space of the sorting box into an upper slag chamber and a lower slurry chamber, a slag outlet is formed in one side of the bottom end of the upper slag chamber, a plurality of draining holes are formed in part of the bottom wall of the lower slurry chamber, and outer draining sleeves are fixed to the positions, located at the draining holes, of the lower slurry chamber; a slurry outlet is formed in one side of the bottom end of the outer draining sleeve, and a slurry outlet is formed in the other side, away from the outer draining sleeve, of the bottom wall of the lower slurry chamber; the tw