Flour screening and dehumidifying equipment

The invention belongs to the field of flour processing, and relates to flour screening and dehumidifying equipment which comprises a shell, three fixing columns are fixedly arranged on the lower side of the shell, a discharging port is fixedly formed in the lower side of the shell, an upper cover is arranged on the upper side of the shell in a sliding mode, and a feeding port is fixedly formed in the upper side of the upper cover. A motor drives a rotating wheel to rotate, so that a first cam is driven to rotate, a first screening bin shakes, flour is filtered for the first time, meanwhile, a hollow gear rotates, a half gear is driven to rotate, a sliding block is driven to slide in a sliding groove, a second cam rotates, and a second screening bin shakes; a motor drives a connecting plate to rotate, so that a supporting column is driven to rotate, a grinding block is driven to rotate, flour blocks in a second screening cavity are ground into powder through the grinding block, in addition, air is heated throu