Hidden closable shutter device for ship

The invention discloses a concealed closable shutter device for a ship, and belongs to the technical field of ship ventilation, air exchange and air pressure balance. Comprising a shutter body fixed to a passenger liner ventilation opening, a plurality of shutter openings are formed in the shutter body, a sliding groove set is arranged around the shutter openings, the sliding groove set is arranged on the inner side of the shutter body, a sliding window is arranged in the sliding groove set in a sliding mode, and sliding window openings corresponding to the shutter openings in a one-to-one mode are formed in the sliding window. The device is simple in structure, easy and reliable to operate and light in weight, and the overall appearance of the ship is not affected by appearance and installation; and the device is generally used outside various ships, and is particularly suitable for high-grade ships with higher requirements on appearance modeling, such as cruise ships, cruise ships, yachts, business receptio