Separation plate type filter capable of realizing thorough reverse flushing of filter cores

The utility model relates to a separation plate type filter capable of realizing the thorough reverse flushing of filter cores, which comprises a casing, wherein a separation plate is arranged at the inner side of the casing, a clean liquid outlet valve, a gas back blowing valve and an atmospheric valve are respectively connected with a clean liquid cavity arranged above the separation plate, a turbidity liquid inlet valve, a pollution discharge valve and a thorough discharge valve are respectively connected with a turbidity liquid cavity arranged under the separation plate, a plurality of filter cores positioned in the turbidity liquid cavity are arranged on the separation plate, the clean liquid cavity arranged at the upper part and the turbidity liquid cavity arranged at the lower part are communicated through the filter cores, core pipes are arranged at the inner sides of the filter cores, the lower ends of the core pipes are positioned at the lower parts of inner cavities of the filter cores, gaps are fo