Gas pipeline welding device

The utility model relates to the technical field of gas pipeline machining, and discloses a gas pipeline welding device which comprises a support, a fixing block is fixedly connected to the outer surface of the lower end of the support, and a first sliding block is slidably connected to the position, close to the upper end, of the outer surface of the support. A second sliding block is slidably connected to the position, close to the lower end, of the outer surface of the support, a first telescopic rod is slidably connected to the position, close to the middle, of the outer surface of the right side of the first sliding block, and a first connecting rod is slidably connected to the position, close to the middle, of the outer surface of the right side of the first telescopic rod. The gas pipeline welding device has the advantages of being capable of fixing a pipeline, firm in fixation, not prone to sliding, capable of automatically welding the pipeline, capable of avoiding injury to a user and the like, and s