Outdoor fire-fighting pipe with unfreezing function

The utility model discloses an open-air fire-fighting pipe with an unfreezing function, which comprises a fire-fighting pipe mechanism, the fire-fighting pipe mechanism comprises a pipe body, the rear side of the pipe body is communicated with a communicating pipe, the side, far away from the pipe body, of the communicating pipe is communicated with a liquid outlet valve, and the side, far away from the pipe body, of the surface of the communicating pipe is fixedly sleeved with a supporting fixing plate. Supporting stand columns are welded to the two sides of the bottom of the supporting fixing plate correspondingly, a mounting plate is welded to the bottoms of the supporting stand columns, a dismounting mechanism is arranged at the top of the mounting plate and comprises a threaded shaft, and the bottom of the threaded shaft is movably connected with the top of the mounting plate through a rolling bearing. And an independent power supply is arranged at the bottom of the mounting plate. The pipe body, the liq