Engineering pipeline laying and welding device

The invention relates to the technical field of pipeline laying and welding, in particular to an engineering pipeline laying and welding device which comprises a sliding base, a first welding pipeline and a second welding pipeline and further comprises a fixing base, a welding device and an adjusting assembly. An arc-shaped adjusting groove is formed in the side wall of the fixing base and slidably connected with an electric rotating shaft, the end, close to the rubber roller, of the electric rotating shaft is fixedly connected with the rubber roller, and the end, away from the rubber roller, of the electric rotating shaft is rotationally connected with the locking rotating shaft. According to the device, the rubber rollers are adjusted to enable a pipeline to sink into the device, the two rubber rollers rotate oppositely to generate strong clamping force, it is ensured that the pipeline is firmly fixed to the middle position, the stable and reliable fixing effect is provided, accurate alignment of grooves is