Hot water recycling system of freeze-drying device

The utility model relates to the technical field of freeze-drying devices, and discloses a freeze-drying device hot water recycling system which comprises a heat exchange box, an end cover is installed in the top end of the heat exchange box, two water conveying pipes are fixedly connected to the side wall of the heat exchange box, and two heat exchange pipes are fixedly connected to the inner wall of the right side of the heat exchange box. The inner wall of the heat exchange box is fixedly connected with a supporting plate, the interior of the supporting plate is fixedly connected with a curved heat conduction pipe, and the two ends of the curved heat conduction pipe are fixedly connected with insertion pipes correspondingly. Heat of hot water can be conducted into the heat exchange box through the water conveying pipe and the heat exchange pipe, heat exchange media can be conveyed into the heat exchange box through the heat exchange pipe, the heat is dissipated from the pipe wall of the curved heat conduct