Air conditioner air return device of cruise ship passenger room

The invention provides an air conditioner air return device of a cruise ship passenger room. The air conditioner air return device comprises an air return grille, an air return port, an air outlet, abox body, an overhaul cover plate, a connecting device and a flow guide device. The air return port is fixedly arranged at one end of the box body, and the overhaul cover plate is fixedly arranged ona first plane of the other opposite end of the box body; the connecting device is located at the overlapping part of the overhaul cover plate and the box body, and is used for fixing the overhaul cover plate on the box body; the air outlet is fixedly formed in the box body and is perpendicular to the air return port; the air return grille is inserted into an external opening of the air return port; one end of the flow guide device is fixedly arranged on the inner edge of the air outlet; and the included angle between the flow guide device and the air outlet is a first preset angle. By means ofthe structural design, the