The utility model discloses a coating device is repaired fast to inside lining PP pipeline, it is including the base, relative the fixed and pivot is connected with the driving motor transmission of base, the fixed setting is used for clamp tightly wait the to coat chuck of tubular product at shaft ends to and fixed the setting the base on and lie in wait to coat the tubular product outside and along its axially extended heated strip. The utility model discloses utilize centre gripping formula location and outer heating methods, effectively simplified overall structure, be convenient for go on perhaps coating of restoration fast at the scene, saved process time, utilize the heated strip in the outside to heat the PP material through tubular product moreover, can guarantee the homogeneity of heating, for the sufficient mobility of PP material in rotatory, establish the basis for evenly coating moreover.