Grain cleaning and screening device

The utility model relates to a grain cleaning and screening device, which belongs to the field of grain screening and comprises a feeding frame, a feeding hopper, a spiral conveyor, a dust collection mechanism, a screening frame and a support frame. The feeding frame is arranged on the supporting frame. The feeding hopper is arranged at the lower end of the feeding frame; the spiral conveyor is arranged on the feeding frame, and the output end of the spiral conveyor is located in the feeding frame. A through hole is formed in the upper end of the feeding frame; the dust collection mechanism is arranged at the upper end of the feeding frame; the dust collection mechanism is located at the through hole; the screening frame is arranged on the feeding frame, the screening frame is obliquely arranged, and the screening frame is perpendicular to the feeding frame. According to the grain screening device, dust and light impurities in grains can be sucked away, and the remaining part can be screened. 本实用新型涉及一种粮食清理筛选装