Unidirectional flow belt fresh air ceiling dehumidifier

The utility model provides a one-way flow ceiling dehumidifier with fresh air. The one-way flow ceiling dehumidifier comprises a machine shell, a first filtering device, a draught fan, a wind shield, a dehumidifying device and a second filtering device. An air inlet and an air outlet are formed in the two opposite sides of the machine shell respectively, the interior of the machine shell is divided into a first cavity and a second cavity through a partition plate, and the first filtering device and the draught fan are sequentially arranged in the first cavity; the dehumidification device comprises an evaporator and a condenser, the air baffle, the evaporator, the condenser and the second filtering device are sequentially arranged in the second cavity, and the air baffle is right opposite to an air outlet of the fan and is spaced from the air outlet of the fan by a preset distance. According to the one-way flow ceiling dehumidifier with the fresh air function, the effects of dispersing air flow and reducing th