Dustproof boiler cleaning machine

The utility model discloses a dust-proof boiler cleaning machine which comprises a boiler body and a cleaning mechanism, a cleaning machine frame plate is arranged on the top side of the boiler body, four supporting frames which are annularly distributed at equal intervals are fixedly welded to the side wall of the cleaning machine frame plate, and the four supporting frames are erected on the top side of the boiler body. The sweeping mechanism is arranged on the sweeping machine frame plate. The servo motor can drive the screw rod to rotate after being started, when the screw rod rotates, the movable plate can move on the screw rod under the guiding action of the two guiding rods, the cleaning plate is driven by the supporting rod to move downwards, and therefore slag and ash attached to the inner wall of the boiler body are cleaned, and the suction fan is started while cleaning is conducted, so that the cleaning efficiency is improved. The suction fan enables the four dust collection hoods to generate sucti