The anti-clogging drainage inlet is adapted for use in lawn or field environments that require drainage systems to prevent flooding or unwanted pooling during periods of rain. The inlet includes a grate mounted to a rectangular frame. The frame and the grate are adapted to be positioned in the opening of a conventional drainage box in a manner that the top surface of the grate is flush with the surface of the lawn or field. A linkage system is mounted to the frame and grate and operates to raise the grate from its flush position. The linkage system includes a container positioned below the grate and within the drainage box.