Filter element assembly and water purifying device

The utility model relates to the field of water purification, and provides a filter element assembly and a water purifying device.The filter element assembly comprises a filter element seat body, a waterway plate, a filter element body and an end cover, and the waterway plate is provided with a plurality of first connectors facing a mounting cavity; the filter element body is arranged in the mounting cavity, the filter element body is provided with a first end and a second end which are oppositely arranged, the first end is provided with a plurality of second interfaces which are mutually inserted with the plurality of first interfaces, and the second end is provided with a rotary connecting part; the end cover is detachably connected to the mounting opening of the filter element seat body, the end cover is rotationally connected with the rotary connecting part, and the filter element body is inserted into the waterway plate while the end cover and the rotary connecting part rotate, so that the first interface and the second interface are connected and communicated. According to the filter element assembly, the stability and the filtering effect of the filter element assembly are guaranteed, meanwhile, the structure of the waterway plate is simplified, the overall size of the filter element assembly is reduced, connection of the filter element body and the waterway plate is facilitated, and the manufacturing cost is reduced.