Water filter system with backwashing function for nuclear power station

The utility model relates to a water filter system with a backwashing function for a nuclear power station, which comprises a metal fiber water filter arranged on a process pipeline and a plurality of control valves, a backwashing pipeline is connected to the process pipeline at the downstream of a water outlet of the metal fiber water filter, a backwashing pump is arranged on the backwashing pipeline, and a water outlet of the metal fiber water filter is communicated with the backwashing pump. The upstream of a water inlet of the metal fiber water filter is connected with a nuclear island drainage and exhaust system through a pipeline, and backwashing water is discharged through the nuclear island drainage and exhaust system. According to the utility model, the function of the filter element of the water filter is recovered through backwashing, so that the filter element after backwashing can still meet various performance indexes, thereby greatly reducing the replacement frequency and quantity of the filter