The invention discloses an air pollution treatment apparatus for an industrial plant, comprising an air treatment cabinet, a sterilizing box, a treatment cabinet base and a cabinet door, wherein one side of the interior of the air treatment cabinet is provided with an air inlet through a mounting seat, a dust filter screen is installed in the air inlet through a fixing frame, one side of the air inlet is connected to an air inlet pipe A through bolts, a suction fan is installed in the air inlet pipe A through a mounting frame, the bottom of the air inlet pipe A is connected with the sterilization box, a negative ion sterilizer is installed in the sterilization box through a screw, the bottom of the sterilization box is connected with an air inlet pipe B through a screw, one end of the bottom of the air inlet pipe B is connected with a medicament container, the medicament container is filled with a plant deodorant, one side of the medicament container is connected with an air outlet pipe A, and the top of the air outlet pipe A is connected with a high-efficiency particle air filter through a mounting seat. The air pollution treatment device for the industrial plant has a strong function, scientific design, convenient operation, good stability and high reliability, and is suitable for widespread popularization.