The utility model provides a secondary recycling device for
waste heat of
bathing wastewater, which relates to the technical field of
waste heat recovery and comprises a connecting box, a connecting
pipe is arranged in the connecting box, a water inlet
pipe is arranged at one end of the connecting
pipe, and a water outlet pipe is arranged at one end, far away from the water inlet pipe, of the connecting pipe. A cleaning device is arranged at the top of the water inlet pipe, a connecting device is arranged at the top of the water inlet pipe, the cleaning device comprises a connecting
rope, and when the cleaning device is used, the motor close to one end of the water inlet pipe is started firstly, so that the motor drives the round rod to rotate, and then the connecting
rope is wound on the surface of the round rod; the rubber ball is driven to move in the connecting pipe, the rubber ball extrudes the inner wall of the connecting pipe,
dirt in the connecting pipe is extruded out through the rubber ball, in this way, the interior of the connecting pipe can be conveniently cleaned, and the situation that
heat transfer of the connecting pipe is affected by the
dirt is avoided to a certain extent.