Special device for preparing waterproof paint, and using method thereof

The invention provides a special device for preparing a waterproof paint, and a using method thereof, and relates to the field of paints. The device comprises a mixing tank, a smell leading-in mechanism comprises an air suction cover and two supporting rods, the bottoms of the supporting rods are fixedly connected with the top of the mixing tank, the air suction cover is a U-shaped cover, closed pipes are connected to two sides of the bottom of the air suction cover, a stretching plate is fixedly connected to the top of the air suction cover, the middle of the bottom of the mixing tank communicates with a discharging tank through a guide pipe, a control valve is mounted at the inner side of the guide pipe, and a filtering assembly is mounted in the inner cavity of the discharging tank. When chemical substances are mixed to generate irritant and toxic smells and the mixing tank is opened for feeding, the smell leading-in mechanism can suck away the generated irritant and toxic smells, so that the irritant and