Concrete lining HDPE pipe repairing device

The invention belongs to the technical field of pipeline repairing, and particularly relates to a concrete lining HDPE pipe repairing device which comprises a main shell. The cleaning assembly comprises a high-pressure water pipe rotationally connected into the main shell in a penetrating mode, the input end of the high-pressure water pipe communicates with the output end of an external high-pressure water pump, a rotating disc is fixed to the output end of the high-pressure water pipe, and a plurality of supporting rods are arranged on the peripheral side wall of the rotating disc in an annular array mode; a scraping plate is fixed to the supporting rod, a groove is formed in the middle of the scraping plate, and a water gun spray head is installed in the groove. The inner wall of a pipeline is comprehensively cleaned through high-pressure water, meanwhile, torsional moment force is provided for a rotating disc, a mortar spraying head is driven to swing in a reciprocating mode to blast sand to the inner wall