Waterproof device for heat supply pipeline

The utility model provides a waterproof device for a heat supply pipeline, which belongs to the technical field of pipeline waterproofness and comprises a multi-section heat preservation sleeve, a protection plate, a sealing sleeve and fillers. The multi-section heat preservation sleeve is used for being arranged on the heat supply pipe in a sleeving mode. The protective plates are arranged on theouter sides of the adjacent ends of the two heat preservation sleeves in a surrounding mode. The sealing sleeve is arranged on the heat preservation sleeve in a sleeving mode and matched with the endof the protection plate in an inserted mode, and the sealing sleeve is used for sealing a gap between the protection plate and the heat preservation sleeve. The space defined by the protection plateand the sealing sleeve is filled with the filler. According to the waterproof device for the heat supply pipeline, the heat supply pipe is isolated from the outside through the protection plate, the heat preservation sleeve and