PURPOSE: To improve the suction ability by disposing side squeegees 16 in a body frame so as to ascend and descend to scrape filthy water on its sides and make a mann squeegee suck the same.

CONSTITUTION: When side squeezees 16 are suspended above the floor and a floor cleaning machine is moved forward by handle operation, filthy water on the floor is sucked into and accommodated in a tank 7 from an aperture for suction in a front plate 12 of a main squeegee. When the side squeegees 16 are brought into contact with the floor and the cleaning machine is moved backward by handle operation, the filthy water is scraped inward by the right and the left side squeegees 16 and sucked into the tank 7 from an aperture suction in a rear plate 13 of the main squeezee. In this case, it is aimed to improve the suction ability by creating the width dimension of the aperture for suction in the rear plate 13 of the main squeegee to be broader than that in the front plate 12 so as to cope with an increase in the quantity of the filthy water due to scraping by the side squeegees 16.