This application relates to a filter system for river waste pollution treatment, and relates to the technical field of river waste treatment, which includes a mud extraction device and a processing device, the processing device includes a base, and a filtering mechanism and a dehydration mechanism are arranged on the base, and the dehydration mechanism includes a settling tank, The dehydration tank and the solidification tank, the settling tank has an overflow pipe, the bottom of the settling tank is provided with a conveying piece, the upper end of the dehydration tank is provided with a mud overflow pipe, and the height of the mud overflow pipe is higher than the height of the overflow pipe. The sludge is sent to the treatment device afterward, the bulky garbage stays in the filter mechanism, and the rest of the sludge falls into the sedimentation tank, where it settles and stratifies in the sedimentation tank, and the heavy sludge accumulates at the bottom of the sedimentation tank, and the conveying parts transport the sludge to the dehydration tank , the sludge in the dehydration tank gradually increases, and finally overflows from the overflow pipe and flows into the solidification tank, so that the river waste pollution treatment and filtration system can separate the water in the sludge, the small-volume garbage and the large-volume garbage, so as to realize the garbage in the sludge. Hierarchical filtering.