The spray tower has no leakage risks, offers excellent purification, and performs multi-stage purification treatment of waste gases. It is easy to operate, with low maintenance costs, and can also be used as a pretreatment setup for comprehensive organic waste gas treatment. It is applicable to various industries such as coating, furniture, paint, chemical, oil refining, PTA tail gas treatment, automotive and machinery manufacturing, electronics, electrical, and insulated wire coating organic waste gases, among many others.