The invention relates to a hand-operated back-washing filter with a filter screen. The hand-operated back-washing filter is composed of a sewage draining assembly, a water inlet cavity, a middle cavity and a filter cavity, wherein the sewage draining assembly comprises a sewage draining pipe, a handle, a sealing cover and a sewage inlet, the sewage draining pipe penetrates through the center of the water inlet cavity to reach the top end of the filter cavity, the middle cavity is in a hollow plum-column shape arranged symmetrically by taking the sewage draining pipe as a center, a sewage draining channel is arranged in the middle cavity, and the filter cavity is composed of a shell and multiple filter elements. When the filter works, the sealing cover is positioned at the middle part of two openings on the bottom surface of the water inlet cavity, the sewage inlet is closed by a side wall of the middle cavity, and at the moment, source water enters the filter elements to be filtered; impurities are accumulated in the filter element, when the difference of the inlet pressure and the outer pressure reaches the designed upper limit value, the handle is rotated, the sealing cover seals one opening on the bottom surface of the water inlet cavity, the sewage inlet is justly communicated with the sewage draining channel, and the filter element is in a back-flushing state. The hand-operated back-washing filter has compact structure and low manufacture cost, each filter element can perform back flushing independently, sewage drainage is performed in a nonstop manner, the impact on the normal operation of the system is little and the working efficiency is high.