The utility model discloses a be used for abluent pedrail robot of electrified water walking mud discharging device, including axle, leading wheel and track, the axle is fixed on the box and is extended from the box lateral wall, and the leading wheel cover is established and is extended the end at the axle, and the track tensioning is overlapped around the robot on the leading wheel, and close the leading wheel and its middle part is provided with the cover and in epaxial hole, tosses about mutually to the recess with the robot on the leading wheel towards the robot side seal, is provided with the frustum of a cone in the recess, and closed surface is connected to main aspects and its middle part forms cover in epaxial hole, and in the recess was placed in to frustum of a cone tip, leading wheel circumference was provided with a plurality of through -holes, the device is through opening a plurality of through -hole on leading wheel circumference surface, extrude into recess with mud, sand through the through -hole with the help of the pressure of track, and the rethread frustum of a cone is derived outside the leading wheel for the track can maintain normal pulling force within range, and the motor can continued work.