Vehicle humidifier

The utility model relates to a vehicle humidifier. The utility model comprises a metal mesh piece, a transducing piece, a transducing piece clamp, a filtering device, a water absorption device, a top cover, a middle sleeve and an electronic circuit board, wherein the metal mesh piece and the transducing piece are welded by solder and fixed above the middle sleeve by the transducing piece clamp; the transducing piece is electrically connected with a circuit in the electronic circuit board; the water absorption device is arranged at the inside of the filtering device, and one end is in contact with the transducing piece or the metal mesh piece; the middle sleeve is connected with the top cover which is hermetically connected with the top of a water cup; the top cover comprises a lower cover body hermetically engaged with the water cup; an ornamental ring is clamped with the lower cover body; an upper cover body connected with the ornamental ring in a rotating mode and used for controlling whether the circuit in the electronic circuit board is switched on or not; the upper cover body is provided with an atomizing nozzle convenient for ejecting water mist. Through the improvement to the structure of the top cover, the utility model has the advantages of simple structure and easy use; simultaneously because neutral cation exchange resin is not used, the operating cost is reduced.