Ultra-clean emission filter bag for converter in iron and steel industry

The utility model belongs to the technical field of filter bags, and particularly relates to an ultra-clean discharge filter bag for a converter in the steel industry, which comprises a fixing ring, a filter bag body and a fixing disc, one end of the fixing ring is connected with the filter bag body, the other end of the fixing ring is integrally formed with the fixing disc, and the inner wall of the fixing ring is symmetrically provided with inserting grooves. A transverse rod is movably inserted into an inner cavity of the inserting groove, a supporting rod is movably inserted into the transverse rod, a supporting disc is connected to the end of the supporting rod, the supporting disc is fixedly arranged at the bottom of an inner cavity of the filter bag body and abuts against the bottom of the inner cavity of the filter bag body, and an inserting hole is formed in the surface of the transverse rod in a penetrating mode. The inner cavity of the filter bag body can be supported through mutual cooperation of