Civil construction material processing device

The civil and building material processing device comprises a treatment box and a plurality of mounting columns, a supporting plate is fixedly mounted on the mounting columns jointly, the treatment box is arranged on the left side of the supporting plate, a cleaning mechanism is assembled in the treatment box, and two stepping motors are fixedly assembled on the right side of the supporting plate; the front side of the supporting plate is provided with a conveying mechanism matched with the two stepping motors, the conveying mechanism is provided with two clamping jaw air cylinders moving left and right, the cleaning mechanism comprises a rotating ring and a cleaning ring, the upper side and the lower side of the treatment box are provided with an assembling cavity and a collecting cavity correspondingly, an assembling cylinder is fixedly arranged in the assembling cavity, and the rotating ring is rotationally arranged in the assembling cylinder in a sealed mode. The rotating ring is in transmission connectio