New energy vehicle charging device with cofferdam

The invention discloses a new energy vehicle charging device with a cofferdam, the new energy vehicle charging device comprises a sunshade and a charging chamber, the sunshade is provided with a first fixing seat, the first fixing seat is provided with a fireproof blanket through a first lifting mechanism, and the first lifting mechanism is used for driving the fireproof blanket to lift; a plurality of unit charging cavities are formed in the charging chamber, a rectangular shell is fixed to the bottom of each unit charging cavity, and a baffle is slidably connected into each rectangular shell in a sleeved mode. The first lifting mechanism can enable the fireproof blanket to descend and cover the unit charging cavity, so that covering type fire extinguishing can be achieved, the second lifting mechanism can drive the baffle to ascend, the side edge of the unit charging cavity is closed, a cofferdam is formed, water enters the unit charging cavity through the main water pipe and the unit water inlet pipe in se