Oil and gas field surface engineering produced water filtering device

The utility model discloses an oil and gas field surface engineering produced water filtering device which comprises a filtering treatment tank, two groups of water outlets are symmetrically installed on the outer wall of the filtering treatment tank at equal intervals, filtering plates are installed on the outer wall of the filtering treatment tank close to the water outlets, a conveying pipe is installed at the center of the top end of the filtering treatment tank, and a conveying tank is installed at the top end of the conveying pipe. A J-shaped guide pipe is installed at the position, at the top end of the bearing bin, of the inner wall of the conveying tank, five sets of concentric-square-shaped pipes are symmetrically installed on the outer wall of the guide pipe at equal intervals, a clamping opening is formed in the bottom end of the guide pipe, and an output cavity is installed at the position, at the bottom end of the adaptor, of the outer wall of the filtering treatment tank and completely embedded