The utility model discloses a self dumping wire walking foreign matter removing fire attack device, comprising a self dumping falling pulley, a main rope, an auxiliary rope, a shot rope, and a right-angle triangular support. A vertical edge of the right-angle triangular support is fixed on the main rope and is provided with an upward extending segment. An upper end of the extending segment just holds out against a lower end surface of the self dumping falling pulley. An upper right-angle edge of the right-angle triangular support is provided with an extending segment in a beveled edge direction, and an end of the extending segment is provided with a bend in a shape of L which is lying. An upper end of the bend is provided with a U-shaped fence groove, and a U-shaped alcohol burner is disposed in the fence groove. A distance between an upper end of the alcohol burner and the wire is 10cm, and a distance between the alcohol burner and the main rope is 40cm. an upper right-angle edge of the right-angle triangular support is provided with a rope ring, and the auxiliary rope is fastened on the rope ring. The alcohol burner is in a shape of jar, and a diameter and height of an alcohol jar are both 8cm. Height of alcohol combusting flame is 4cm. With the self dumping wire walking foreign matter removing fire attack device, just two persons are needed for whole steps of removing foreign matters. The device is simple, rapid, and practical.