The utility model relates to the field of cement production equipment maintenance devices, in particular to a high-temperature kiln maintenance robot for a cement production line. The cleaning devicecomprises a crawler chassis and a high-pressure spray gun arranged on the crawler chassis and used for cleaning the high-temperature kiln. A rotating mechanism for controlling the high-pressure spraygun to horizontally rotate, a lifting mechanism for controlling the high-pressure spray gun to vertically lift, a swinging mechanism for controlling a gun head of the high-pressure spray gun to swingup and down and a telescopic mechanism for stretching and retracting the high-pressure spray gun are further arranged on the crawler chassis; according to the utility model, the personnel safety problem existing in the preheater skinning and grate cooler snowman cleaning process can be solved.