Waste heat energy absorbing device in thermal energy tunnel

The utility model provides a device for drawing waste heat energy in a thermal energy tunnel, which belongs to the field of underground engineering and comprises a heat supply pipeline and a heat absorption pipe, the heat absorption pipe is spirally wound outside the heat supply pipeline, one end of the heat absorption pipe is a water inlet, and the other end of the heat absorption pipe is a water outlet. The heat absorption pipe is wound on the heat supply pipeline in the thermal tunnel in an inclined mode, the heat absorption pipe is in direct contact with a waste heat source, and the heat exchange efficiency is high. The water temperature of the water inlet of the heat absorption pipe is 4-6 DEG C. The ground source heat pump is adopted to enable low-temperature water to flow in the heat absorption pipe, the water absorbs heat on the heat supply pipeline, the temperature rises continuously, the temperature of the water outlet can reach up to 50 DEG C, circulation is conducted repeatedly, the absorbed heat