Phosphine fumigating tail gas purification system

The utility model discloses a phosphine fumigating tail gas purification system, which mainly comprises an air inlet, an exhaust opening, a regulation valve, a fireproof valve, a butterfly valve, a purifier and an exhaust fan. The phosphine fumigating tail gas purification system is characterized in that through the pipeline connection, centralized purification is carried out phosphine fumigating tail gas in all storage units of two storehouses, and the goal of using one purifier for purifying the phosphine fumigating tail gas of the two storehouses is reached. The phosphine fumigating tail gas purification system belongs to a purification system capable of directly discharging the purified phosphine fumigating tail gas into the atmosphere in a standard discharge way, and the treatment air quantity is 500 to 5000m /h. The system has the advantages that the purification efficiency is high, the operation is simple and convenient, and the safety and the reliability are realized.