Torch waste heat collecting and utilizing device

The utility model provides a torch waste heat collecting and utilizing device which comprises a torch tower, a collecting assembly and a ventilation assembly, the collecting assembly is arranged on the torch tower, and the ventilation assembly is arranged on the collecting assembly. The collecting assembly comprises a water pump, a liquid inlet pipe, a shell, a plurality of liquid inlet ventilation mechanisms, a first annular pipe, a second annular pipe and a spiral pipe body, one end of the liquid inlet pipe is arranged on the water pump, and the other end of the liquid inlet pipe sequentially penetrates through the shell and the first annular pipe; the liquid inlet pipe is fixedly connected with the shell and the first ring pipe; by starting the water pump, external water passes through the liquid inlet pipe, the first ring pipe, the liquid inlet ventilation mechanism, the second ring pipe, the spiral pipe body and the liquid outlet pipe in sequence for efficient waste heat recovery, the liquid inlet ventil