The torch is a kind of biogas for environmental protection processing method of combustible gas, the application field is wide, high degree of automation, safe and reliable, with the coal chemical industry, synthetic chemicals, iron and steel plant, coal gas, petroleum gas, natural gas, biogas, biogas and industrial mills sugar factory, city biogas anaerobic sludge biogas, starch factory biogas, biogas, citric acid in alcohol plant biogas, landfill leachate, biogas biogas, biogas will use the torch.