Leachate treatment device based on household garbage landfill

The utility model discloses a leachate treatment device based on household garbage landfill. The leachate treatment device comprises a device main body, according to the utility model, the motor is started to drive the speed reducer to rotate, the speed reducer drives the connecting rotating shaft to rotate, the connecting rotating shaft drives the two-way screw rod to rotate, and the rotation of the two-way screw rod enables the first sliding block and the second sliding block to move relative to each other; a first swing rod and a second swing rod are driven to move, so that an extrusion plate can move downwards in an extrusion box, garbage in the extrusion box is extruded, and waste liquid in the garbage can be rapidly leached out; and after the waste liquid in the garbage is completely leached, the height of an extrusion plate is adjusted to a proper position, and then a cleaning plate can move under the action of a second electric telescopic rod, so that the cleaning plate can slide at the bottom end of