Planar roller sand blasting machine

The invention discloses a planar roller sand blasting machine which comprises a bucket elevator, a sand collection bucket, rollers, a driving device, a sand blowing chamber, a blasting gun, a high-pressure air injection system and a spiral sand winding system. The bucket elevator is arranged vertically, an output end of the bucket elevator is communicated with the sand collection bucket which is communicated with the blasting gun, the blasting gun is arranged in the sand blowing chamber and communicated with the high-pressure air injection system, the rollers are arranged side by side to form a conveying chain of bearing plates, the conveying chain is positioned below the sand blocing chamber, the driving device drives the rollers to rotate, the blasting gun is arranged in the sand blowing chamber, and the spiral sand winding system is arranged below the conveying chain and communicated with an input end of the bucket elevator. The plane roller sand blasting machine can perform automatic sand blasting on plat