Spraying device for dry powder deacidification

According to the technical scheme, the spraying device is characterized in that an outer brush and an inner brush are arranged and used for solving the problem that dry powder remains in a spraying pipe, and an electric rotating paddle is arranged and used for solving the feeding problem; the Z-shaped rod drives the inner brush to rotate, the inner brush drives the connecting shaft, and the connecting shaft drives the outer brush to rotate, so that the outer brush and the inner brush are matched to clean the perforated plate, and the situation that dry powder remains on the perforated plate and influences subsequent dry powder spraying when the dry powder is sprayed is prevented; when an electric rotating paddle rotates, a sealing plate can be driven to move towards the rear end, dry powder in a storage box falls down from a discharging port and falls onto the electric rotating paddle, when the electric rotating paddle with the dry powder rotates to reach an opening, the dry powder falls into a pipe body, the