Floor cleaning machine

The Invention relates to a floor cleaning machine with a dirt receiving container, via a Suction line is connected to a suction unit, wherein on the suction line a pleated filter is arranged, and with a filter cleaning, having at least one scraper to the folds of the filter moth attack, wherein the pleated filter and the scraper relative to each other are movable. To the floor cleaning machine in such a way that they having a structurally simpler construction and cleaned the pleated filter reliably may be, it is proposed according to the invention, that this Pleated filter comprises a first and a second filter region, wherein the first filter portion permanently connected to the suction unit in fluid communication and where the flow connection between the second filter region and the suction unit selectively can be released and interrupted.