Waste powder purifying, drying and screening treatment device

The utility model discloses a waste powder purifying, drying and screening treatment device, which relates to the technical field of waste powder treatment in an asphalt mixing station, effectively reduces environmental pollution caused by waste powder discharge, and adopts the technical scheme that the waste powder purifying, drying and screening treatment device comprises a waste powder treatment box, and clear water is filled in the box body; the slope conveying mechanism is arranged in the waste powder treatment box, the tail end of the slope conveying mechanism is located at the top of the box body, a suspended matter collecting piece is installed at the position, close to the tail end of the slope conveying mechanism, of the top of the box body and comprises a filter screen and a baffle which are arranged side by side, and the filter screen and the bottom of the baffle are connected through a bottom plate to form a suspended matter collecting groove; the drying mechanism is connected with the tail end o