A self-cleaning filter with a cylindrical configuration comprising an outer casing by way of cylindrical surface, an inlet cover and an outlet cover by way of bases, a liquid inlet mouth with a valve V1, a liquid outlet mouth with a valve V2 and a drainage outlet with a valve V3, the filter comprising: - a supply chamber, which is coaxial with the cylindrical-shaped outer casing, configured by means of a filtering element by way of a cylindrical surface that is joined to an inlet disc and to an outlet disc by way of bases, - a drainage chamber that is joined to the supply chamber at one end and to a drainage outlet at the other end, - a filtration chamber, delimited between the outer casing, the supply chamber and drainage chamber, the inlet disc and the outlet cover, wherein, - the supply chamber houses a cleaning brush that comprises a tube that is fixed, with the ability to rotate, to the inlet disc and to the outlet disc, at least two blades extending tangentially from the tube, with the ends ending with bristles, having dimensions such that they longitudinally occupy the entire length of the tube and, radially, the bristles are in contact with the filtering element, the blades being radially distributed in a balanced manner, and both the blades and tube being hollow and hydraulically communicated, - the drainage chamber houses a shaft, joined to, and without plugging, the end of the tube, the shaft ending in a rotor such that: - when the valves V1 and V2 are open, the water enters into the supply chamber and moves to the filtering chamber passing through the filtering element, and - when the valves V1, V2 and V3 are open, the drainage chamber suctions the fluid of the filtration chamber, which passes through the filtering element and, through the blades, passes through the tube to move to the drainage chamber, activating the rotor and making the blades sweep the inner surface of the filtering element the filter being characterized in that the outlet disc comprises holes joined to nozzles which are radially distributed and directed towards the surface of vanes of the rotor. - a supply chamber, which is coaxial with the cylindrical-shaped outer casing, configured by means of a filtering element by way of a cylindrical surface that is joined to an inlet disc and to an outlet disc by way of bases, - a drainage chamber that is joined to the supply chamber at one end and to a drainage outlet at the other end, - a filtration chamber, delimited between the outer casing, the supply chamber and drainage chamber, the inlet disc and the outlet cover, - the supply chamber houses a cleaning brush that comprises a tube that is fixed, with the ability to rotate, to the inlet disc and to the outlet disc, at least two blades extending tangentially from the tube, with the ends ending with bristles, having dimensions such that they longitudinally occupy the entire length of the tube and, radially, the bristles are in contact with the filtering element, the blades being radially distributed in a balanced manner, and both the blades and tube being hollow and hydraulically communicated, - the drainage chamber houses a shaft, joined to, and without plugging, the end of the tube, the shaft ending in a rotor - when the valves V1 and V2 are open, the water enters into the supply chamber and moves to the filtering chamber passing through the filtering element, and - when the valves V1, V2 and V3 are open, the drainage chamber suctions the fluid of the filtration chamber, which passes through the filtering element and, through the blades, passes through the tube to move to the drainage chamber, activating the rotor and making the blades sweep the inner surface of the filtering element the filter being characterized in that the outlet disc comprises holes joined to nozzles which are radially distributed and directed towards the surface of vanes of the rotor.