Ventilator drainage vapor lock device

The utility model relates to a ventilator device, in particular to a ventilator drainage vapor lock device which achieves the vapor and liquid separation of moisture gas inside a ventilator shell containing wet gas. The ventilator drainage vapor lock device comprises a box, a differential pressure vapor lock and a flow regulating valve, wherein the box is installed on the bottom of a ventilator shell and communicated with the ventilator shell, one side of the differential pressure vapor lock is communicated with the box, and the other side of the differential pressure vapor lock is communicated with the flow regulating valve which is used as a condensed fluid outlet to form an liquid dispersing passage. The installation angle of the differential pressure vapor lock is adjustable, moisture gas in the ventilator shell and the condensed fluid pass through the box and enters the differential pressure vapor lock, so that the vapor and liquid separation can be achieved by the regulation of the installation angle of