Wellhead high-pressure fine filter in oil water injection exploitation

The utility model relates to a wellhead high pressure fine filter in oil water injection exploitation, which comprises a connecting pipe (1) for water injection, a mounting cover (2) and a filter material component, the filter material component is fixedly connected to the bottom of a top cover and movably inserted in a center hole of the connecting pipe (1) along the vertical direction, and the filter material component comprises more than two annular mounting racks distributed up and down; filter screens are mounted in the annular mounting racks, and the mesh number of the filter screens mounted in the upper annular mounting rack in the adjacent annular mounting racks is smaller than that of the filter screens mounted in the lower annular mounting rack; a spring bolt device is arranged on an outer sleeve of the mounting cover (2), and a lock groove is formed in the connecting pipe (1). Therefore, the coarse filter screen, the fine filter screen and the filtered objects can be conveniently and quickly moved