Transformer substation drainage device

The utility model relates to a transformer substation drainage device which comprises a cable trench, a water collecting well, a drainage ditch, a first liquid level sensor, a second liquid level sensor, a flow sensor, an alarm and a controller. A water pumping device is arranged in the water collecting well, and a water outlet of the water pumping device is communicated with the drainage ditch through a drainage pipe. The first liquid level sensor is installed in a water collecting well and used for detecting the liquid level height of the water collecting well, the second liquid level sensor is installed in a cable trench and used for detecting the liquid level height of the cable trench, and the flow sensor is installed on a drainage pipe and used for detecting whether liquid flows in the drainage pipe or not; the alarm is used for sending alarm information; and the controller is connected with the first liquid level sensor, the second liquid level sensor, the flow sensor, the alarm and the water pumping d