Bean flour screening machine

The utility model discloses a bean flour screening machine, which comprises a machine base, a screening machine and a discharge tube of the screening machine, wherein the screening machine is fixed on the machine base, the bean flour screening machine further comprises a transfer feed box, the transfer feed box is arranged below the discharge tube, a feed inlet, which corresponds to a discharge hole of the discharge tube, is formed in the upper surface of the transfer feed box, a bucket-shaped structure is arranged at the bottom surface of the transfer feed box, a feed opening is formed in the tail end of the bucket-shaped structure, a material valve is formed in the feed opening of the transfer feed box, and the transfer feed box is fixed on the machine seat. The bean flour screening machine has the advantages of simple structure, convenience for operation, no stopping operation and capabilities of improving the production efficiency and effectively avoiding dust.