The invention relates to the technical field of pipeline robots, and discloses a self-spraying intelligent pipeline detecting dirt removing robot. A machine body is included. A controller is fixedly arranged on the top of the machine body. According to the self-spraying intelligent pipeline detecting dirt removing robot, an electric push rod is started corresponding to the pipeline caliber, a pushplate is pushed towards the left side of the machine body, a rotation rod is driven to move along a through hole, under the assistance of a hinge, an upper support arm and a lower support arm on theright side are pulled to get close to the middle, accordingly, the included angle between the upper support arm and the lower support arm on the upper side and the lower side is enlarged, the distancebetween two wheels is reduced, then, the wheels are attached to the pipe wall, and the machine body is plugged into a pipeline. Then, a double-output-shaft motor is started, a scraper is driven to rotate, the wheels are in transmission through a crawler belt and move along the pipe wall, a water conveying pipe is used for conveying water to a connecting disc, and the water enters an installing plate along a branch pipe and is finally sprayed to the pipe wall through a sprayer. The machine body moves the scraper to clean the sprayed and flushed pipe wall, and the purposes of pre-adjustment andthe high cleaning safety coefficient are achieved.