Efficient welding device for building electrical engineering construction

The invention discloses a building electrical engineering construction efficient welding device which comprises a device bottom shell, and two sets of symmetrically-arranged adjusting devices are horizontally fixed to the bottom end of the interior of the device bottom shell; the two sets of device side shells are symmetrically arranged and fixedly assembled at the upper end of the adjusting device, the center sides of the device side shells are assembled at the upper end of the device bottom shell in a sliding mode, and clamping devices are fixedly assembled in the device side shells; the control device is arranged in the device bottom shell, the bottom of the control device is fixed to the center of the inner wall of the bottom of the device bottom shell through bolts, and the left side face and the right side face of the control device are fixed to the side faces of the center ends of the two device side shells through bolts. The connecting block is fixed to the upper surface of the device bottom shell thr