Sandstone separator for treating concrete waste

The utility model provides a gravel separator for processing concrete waste, which comprises a feeding hopper and a separator body, the feeding hopper is a cavity with an open top, one side wall of the feeding hopper is provided with at least one water inlet, and the other side wall of the feeding hopper is provided with a material outlet; the material outlet is communicated with the separator body; the separator body comprises an outer barrel and a screen barrel; the outer barrel is of a barrel-shaped structure with the two ends open and is directly or indirectly installed on the ground. The screening barrel is arranged in the outer barrel and is rotationally connected with the outer barrel; two ends of the screen barrel are opened, the side wall is of a net structure, or filtering holes are uniformly distributed in the side wall; one end of the screen barrel is communicated with the material outlet, and the opposite end is used as a stone discharging outlet; a sand outlet is formed in the bottom of the oute