Filter system of robot cleaning machine

The utility model discloses a filtering system of a robot cleaning machine. The device comprises a water supply system, a filtering system, a fixed-point and fixed-position cleaning system, a surge cleaning system, an impurity collecting system, a floating oil discharging system and a blow-off pipeline system, according to the utility model, the filtering system is improved; a three-stage filtering system is adopted (a vortex separator is adopted in a first-stage filtering system; the secondary filtering system adopts a Boll filter; the three-stage filtering system comprises a normal-pressurecloth bag filtering system and a high-pressure cloth bag filtering system, a normal-pressure cleaning and pressurizing system is arranged on an outlet pipeline of the normal-pressure cloth bag filtering system, a high-pressure cleaning and pressurizing system is arranged on an inlet pipeline of the high-pressure cloth bag filtering system, and the filtering precision of cleaning liquid is improvedthrough three-stage filte