Ultraviolet photolysis purifier is a special equipment for treating waste gas. It uses ozone ultraviolet radiation to decompose the molecular chain structure of waste gas such as hydrogen sulfide, methyl mercaptan, styrene, sulfide, VOCs, etc. Through the synergistic reaction of ozone oxidation and photocatalytic oxidation, organic or inorganic polymer waste gas compounds are rapidly degraded and converted into non-toxic and harmless substances such as carbon dioxide and water under the irradiation of high-energy ultraviolet radiation, and deodorization is realized at the same time. The disinfection and sterilization effect enables the waste gas to be effectively treated, and there is no secondary pollution in the treatment process.