High-temperature gas dust removal filter bag

The utility model discloses a high-temperature gas dust removal filter bag. The technical scheme is characterized in that the high-temperature gas dust removal filter bag comprises a connecting flange, connecting rings, a square hole punching framework, a single-side net-covered metal fiber sintering filtering material and a sealing end cover, wherein the connecting flange and the sealing end cover are mounted on the connecting rings at two ends of the square hole punching framework; the single-side net-covered metal fiber sintering filtering material is rounded and then welded on the square hole punching framework, and one side of the single-side net-covered metal fiber sintering filtering material is tightly attached to the square hole punching framework. The single-side net-covered metal fiber sintering filtering material and the square hole punching framework are tightly attached through plasma welding, the strength is high, the reverse blowing effect is good, and the high-temperature gas dust removal fil