Horizontal water filter

The utility model relates to a horizontal water filter, which is characterized in that siphons with different lengths are arranged on a shaft tube, a brush is arranged on a bracket arranged on each siphon, and when the siphons rotate along with the shaft tube, the siphons with different lengths can suck and discharge impurities such as particles, mud and the like at different positions of a filter cartridge; the brush can brush away sludge attached to the inner wall of the filter cartridge, so that the sludge can be sucked and discharged by the siphon, the overall dredging effect is improved, all impurities such as particles and mud can be discharged into the sludge discharging space through the shaft pipe and discharged from the sludge discharging pipe, and the discharged substances are filtered and then discharged into the sludge discharging space through the siphon. Impurities and water are respectively collected and treated by subsequent equipment connected with the sludge discharge pipe. In addition, due