Organic waste for the production process of the polyurethane resin (main ingredient: DMF, glycols, IPAC, etc.) the nature and characteristics of pollutants in the exhaust gas purification mechanism analysis, using the "spray - cooling and dehumidifying --UV photolysis photocatalysis" The combined process for the production of polyurethane exhaust gas purification treatment. The result showed that: DMF removal rate reached 99%; VOCs exhaust removal rate of 99%. Fully meet the emission requirements of environmental protection.