The utility model relates to an industrial waste gas purification equipment belongs to the gas purification technique field. This equipment includes: dust removal mechanism, including filtration cavity, inlet air channel and filter bag, the filter bag will it separates for straining the ante -chamber and straining the back cavity to filter the cavity, inlet air channel one end is equipped with the air intake, the other end with strain the ante -chamber intercommunication, and the mechanism that removes the evil, including the microbiological treatment device of reaction cavity, photocatalyst device, the little biodegradable organic matter of utilization, the reaction cavity the entry end with strain back cavity intercommunication, the exit end with microbiological treatment device intercommunication, the microbiological treatment device is equipped with the gas outlet, photocatalyst device install in the reaction chamber is internal. This industrial waste gas purification equipment can reach high -efficient the dust removal, can also get rid of the hazardous gas in the mist, exterminates the harmful microorganism in the gas to can degrade organic component in the gas has deodorant effect. Very high purification efficiency and fine purifying effect have.