Karst groundwater level fluctuation abnormity early warning equipment

The invention discloses karst groundwater level fluctuation abnormity early warning equipment, and belongs to water level fluctuation abnormity early warning equipment.The karst groundwater level fluctuation abnormity early warning equipment comprises a water level marker post, a buoyancy plate is slidably mounted on the water level marker post, a displacement sensor matched with the water level marker post is embedded in the buoyancy plate, and a mounting box is fixedly mounted on the top wall of the displacement marker post; and a controller matched with the displacement sensor is fixedly mounted on the top wall of the mounting box. According to the scheme, a push rod is matched with a rotating groove, a coil is powered on and generates a magnetic field in the starting process of a motor, then a magnet drives a buoyancy plate to move upwards under the action of the magnetic field, the buoyancy plate is gradually separated from a mounting ring in the upward moving process, and meanwhile the push rod is drive