The present invention is a body formed so that both sides of each of the cleaning grooves are opened; a first cleaning brush rotatably installed to protrude through each of the openings in the body to wash the bottom of the boots located in the cleaning groove; a second cleaning brush which is rotatably installed on the main body so as to protrude from both sides of each of the cleaning grooves, and for cleaning the sides of the boots located in the cleaning grooves; a drive motor installed in the main body to rotate the first and second cleaning brushes by respectively having shaft ends of the first and second cleaning brushes removably coupled to each other by a coupling; The other shaft ends of the first and second cleaning brushes are in contact with each other and rotatably mounted in a plurality of rotation holder grooves installed in the body and formed to be opened upward, and are made of MC nylon to form the first and first rotation holder grooves. 2 A bearingless-type rotating mounting block that directly supports the other end of the axis of the cleaning brush in a rotatable manner; a footrest that is detachably installed in the opening so as to be able to pass while stepping on the boots, so that the first washing brush protrudes upward for washing the bottom of the boots; a detergent nozzle installed in the body to spray detergent necessary for washing boots; a washing water nozzle placed on the body along the longitudinal direction to supply washing water necessary for washing boots through a plurality of nozzle holes; and a controller for controlling the operation of the driving motor, the detergent nozzle, and the washing water nozzle to correspond to the operation signal.
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