Sand blasting device for building decoration

The utility model discloses a sand blasting device for building decoration, which relates to the technical field of sand blasting for building decoration and comprises a movable supporting unit, a sand blasting cylinder, a sealing cover unit, a sand blasting unit, a stirring unit and a wall cleaning unit, the stirring unit comprises a rotating shaft which is movably arranged on the axis in the sand blasting cylinder, and a plurality of stirring cutters which are arranged on the outer surface of the rotating shaft and are used for stirring sand; the wall cleaning unit comprises two movable rods movably arranged in the sealing cover unit and two scraping plates arranged on the inner wall face of the sand blasting cylinder and used for cleaning the inner wall. According to the sand blasting device for building decoration, sand materials are stirred and large-particle sand materials are cut at the same time through the up-down staggered arrangement of the stirring cutters, the sand materials can be stirred and mi