Energy-saving type heat supply pipeline waste heat recovery device

The utility model discloses an energy-saving type heat supply pipeline waste heat recovery device which comprises a first installation seat and a second installation seat, a heat preservation box is fixedly installed on the first installation seat, a heat supply pipeline is inserted in the heat preservation box, a drying box is installed on the second installation seat, a fixing frame is fixedly installed in the drying box, and the fixing frame is fixedly installed on the heat preservation box. A plurality of drying frames are installed on the fixing frame at equal intervals, a plurality of first heat conduction pieces are installed on the heat supply pipeline at equal intervals, and each first heat conduction piece penetrates through the heat preservation box and the drying box and extends to the fixing frame. The heat supply pipeline is ingenious in structure and reasonable in design, heat on the drying pipeline is conducted into the drying box through the heat conduction pieces, materials are dried through