Wall surface paint scraping device for building construction

The utility model discloses a wall surface paint scraping device for building construction, which comprises a main rod and a cart, a locking part is arranged between the main rod and a telescopic ball rod, a fixing part is arranged between the telescopic ball rod and a connecting block, a rotating disc is rotatably mounted in an inner cavity of a connecting cavity, a wall grinding disc is fixed on one side of the rotating disc, and a wall surface paint scraping plate is fixed on the other side of the rotating disc. A functional gear is axially fixed to the other side of the rotating disc, a waterproof motor is fixed to one side of the connecting cavity, a spraying part is jointly arranged between the cart and the connecting cavity, a stabilizing part is arranged in the connecting cavity, and a control panel is arranged at the top of the cart. According to the emulsion paint scraping device, the spraying part is arranged, when the emulsion paint scraping device is used, the water pump can continuously convey w