Cement roller press crushing roller cleaning system with water-saving circulation function

The cement roller press crushing roller cleaning system with the water-saving circulation function comprises a pressing roller machine box, a discharging opening formed in the bottom of the pressing roller machine box and a water collecting box placed below the discharging opening, mounting grooves are formed in the two side walls of the pressing roller machine box in a penetrating mode, and mounting mechanisms are mounted in the mounting grooves; and a cleaning mechanism is mounted on the inner side of the mounting mechanism, driving air cylinders are mounted on the inner walls of the front side and the rear side of the interior of the compression roller case correspondingly, and crushing mechanisms are mounted on the driving air cylinders. By arranging the crushing mechanism and the longitudinal scraper, material residues adhered to gaps of column nails on the surface of the crushing roller can be crushed, so that the material residues become loose; and stubborn, solidified or stuck cement materials in tran