Portable multipurpose appliance for steel structure assembly

The utility model provides a portable multipurpose appliance for assembling a steel structure, which comprises an operating handle, a telescopic mechanism is arranged in the operating handle, and an adjusting mechanism is arranged on the telescopic mechanism; the telescopic mechanism comprises a telescopic rod, the telescopic rod is slidably inserted into the operating handle, a threaded rod is rotatably inserted into the operating handle, a rotating disc is fixedly installed at the end, away from the adjusting mechanism, of the threaded rod, a threaded sleeve is fixedly installed in the telescopic rod, and the threaded rod is inserted into the threaded sleeve in a threaded mode. And the end, away from the rotary disc, of the threaded rod is inserted into the telescopic rod, and symmetrically-distributed clamping pieces are slidably installed at the end, away from the rotary disc, of the telescopic rod. The rotating disc rotates to drive the threaded rod to rotate, along with rotation of the threaded rod, the