A laminated modular water filter includes a top plate, an intermediate plate, and a bottom plate, which are annular. Each of the top and intermediate plates has a bottom surface with an annular lower groove. Each of the intermediate and bottom plates has a top surface with an annular upper groove. Each adjacent pair of the upper and lower grooves in the top, intermediate, and bottom plates constitute a filter-receiving chamber for receiving a filter unit, which includes two filtering films disposed between two rotatable nets.