Automatic sorting equipment and method for kitchen waste sundries

The invention discloses kitchen waste impurity automatic sorting equipment and a kitchen waste impurity automatic sorting method. The equipment comprises a feeding device and an automatic sorting device, the automatic sorting device comprises a rack, an automatic sorting mechanism and a plastic garbage bag recycling device. The automatic sorting mechanism comprises a sorting conveying chain, a guide rail and a sorting conveying driving mechanism; the guide rail comprises a receiving conveying section and a separating conveying section; the sorting conveying chain comprises a plurality of conveying units, and each conveying unit comprises a sliding installation rod arranged on the guide rail in a sliding mode and a plurality of separating rods arranged on the sliding installation rod. The end distance between the separating rods of every two adjacent conveying units in the material receiving and conveying section is smaller than the end distance between the separating rods of every two adjacent conveying units