High-softness leather retanning agent drying waste heat recovery device

The utility model relates to the technical field of waste heat recovery, and discloses a high-softness leather retanning agent drying waste heat recovery device which comprises a supporting frame, a first recovery box and a second recovery box, the first recovery box and the second recovery box are both fixedly arranged at the top of the supporting frame, and cooling water is stored in the first recovery box and the second recovery box. A three-way pipe is arranged above the first recycling box and the second recycling box, a main switch valve, a first branch valve and a second branch valve are arranged on the pipe wall of the three-way pipe correspondingly, filters are fixedly installed at the branch ends of the two ends of the three-way pipe correspondingly, and gas recycling pipes extending into the first recycling box and the second recycling box are fixedly arranged at the bottoms of the two filters correspondingly. And exhaust pipes are fixedly arranged at the top of the first recycling box and the top