Efficient river filter tank

The utility model discloses an efficient river filter tank which is characterized by comprising a filter tank, the filter tank is divided into a plurality of sub filter tanks through partition walls, sand filtering layers are arranged in the sub filter tanks, a prefabricated filter plate is arranged at the bottom of a bearing layer, and prefabricated buttresses used for supporting the prefabricated filter plate are arranged at the bottom of the prefabricated filter plate. The utility model has the advantages that the original large filter tank is divided into the plurality of sub filter tanks through the partition walls, so that the space of the filter tank is fully utilized, and the sand filter layer is effectively used every time; the water is divided into a plurality of parts to be filtered, so that the filtering efficiency and the filtering effect are improved; in addition, sediment at the bottom of the filter tank is flushed through the siphon backwashing pipe according to the siphon principle, pumping a