The utility model relates to a construction robot field, specific electrostatic precipitator formula outer wall clearing robot that says so, including the clearance main part, the clearance main part install externally on the running gear, the clearance main part include chassis, water jet equipment, wiping arrangement, control panel and water storehouse, the water storehouse in can place the washing liquid that is used for clearing up the skin, water jet equipment including water spray cylinder, nozzle, water pump, the wiping arrangement including cleaning the cylinder, clean the motor and clean the dish, clean the dish and clean the circle including electrostatic precipitator board and cotton, the utility model discloses can realize to the washing of skin and clean that simultaneously, the tiny impurity of part can also pass through electrostatic precipitator clean up, thereby the utility model discloses a clearance effect is better.