Fire welding device

The utility model relates to the technical field of high-altitude welding safety, and discloses a fire welding device which comprises a supporting framework, the first end of the supporting framework can stretch or contract relative to the second end of the supporting framework, and a slag storage tank is arranged at the second end of the supporting framework; the fire welding main body comprises a first fire welding layer and a second fire welding layer, the first fire welding layer is laid on the inner side of the supporting framework, and the first fire welding layer is a stainless steel mesh; the second fire receiving layer is laid on the outer side of the supporting framework, and the inner surface of the second fire receiving layer is coated with a fireproof material; when the supporting framework is in the stretching state, the fire receiving body is unfolded to be in an umbrella shape. According to the utility model, the problems that the fire welding main body is subjected to structural change due to