The invention discloses a high efficiency concentration filter. The high efficiency concentration filter realizes continuous filtration, has a large excess flow, utilizes a small amount of backwashingwater and realizes high concentration of filter residues. The high efficiency concentration filter is composed of a cylinder body, a slag collecting hopper, two-way filter screen cylinders, deslagging rods, an electromagnetic vibrator, a water inlet pipe, a water outlet pipe, a solenoid valve and a motor. The two-way filter screen cylinders are arranged in the cylinder body. The deslagging rods are arranged in the two-way filter screen cylinders. The lower end of the cylinder body is provided with the slag collecting hopper. The wall of the slag collecting hopper is provided with the electromagnetic vibrator and the lower end of the slag collecting hopper is provided with a slag discharge tube and the solenoid valve. In work, sewage enters into the cylinder body through the water inlet pipe and flows into the two-way filter screen cylinders from two sides so that the sewage is filtered, then the sewage flows out of the filter from the water outlet pipe above the two-way filter screencylinders, the filter residues are precipitated and collected in the slag collecting hopper, when the filter screen is blocked by the filter residues, the motor drives the deslagging rods to rotate ata high rate to extrude filtered water between the inner and outer filter screen cylinders, the filtered water back-washes the filter residues on the inner and outer filter screen cylinders and the filter residues in the slag collecting hopper are discharged through a filter residue pipe.