The invention relates to a self-driving direction-adjusting backwash cycle regeneration jetting device and a use method thereof. The self-driving direction-adjusting backwash cycle regeneration jetting device comprises a liquid collecting chamber, first jetting inlets, a mixing chamber, an output part, a jetting outlet and a second jetting inlet, wherein the liquid collecting chamber has a cylindrical structure; the top of the liquid collecting chamber is provided with two first jetting inlets; an included angle X is formed between the two first jetting inlets; the inlet ends of the two first jetting inlets are connected with a backwash pipeline; the outlet ends of the two first jetting inlets are positioned above the mixing chamber formed in the liquid collecting chamber; the bottom outlet of the mixing chamber is communicated with the inlet of the output part; the output part passes through the bottom of the liquid collecting chamber, and is movably connected with the bottom of the liquid collecting chamber; the outlet end of the output part is provided with the flared jetting outlet; the side wall surface of the upper part of the liquid collecting chamber is further provided with the second jetting inlet; the second jetting inlet is horizontally tangent to the side wall surface of the liquid collecting chamber. By adopting the self-driving direction-adjusting backwash cycle regeneration jetting device, self-driving and direction adjusting can be realized, the problems of local deformation, erosion breakage and the like of a filter screen are solved, and the service life of a rotary filter screen is prolonged.