Screening and separating device for high-yield planting of alfalfa

The utility model provides a screening and separating device for high-yield planting of alfalfa, which relates to the technical field of screening devices and comprises a cabinet body, a plurality of universal wheels arranged at the bottom of the cabinet body, a box body arranged at the top of the cabinet body, a feeding port arranged at the top of the box body, two sealing covers arranged inside the feeding port, and ventilation ports respectively arranged on two sides outside the box body. Two ventilation openings are formed in the box body, shutters are arranged in the two ventilation openings, the screening assembly is arranged in the box body, and the cleaning assembly is arranged on the screening assembly. According to the screening and separating device, full and round high-quality alfalfa seeds are screened out through the screening assembly, meanwhile, impurities and some wizened and poor-quality seeds can be separated out, so that the survival rate of the alfalfa seeds is increased, and the yield of