Ventilation mechanism for ship

The utility model discloses a ventilation mechanism used for a ship, and relates to the technical field of ventilation cooling, the ventilation mechanism used for the ship comprises a first installation disc, a plurality of installation holes are arranged on the first installation disc, the top of the first installation disc is fixedly connected with a first ventilator, a fan assembly is arranged in the first ventilator, and the fan assembly is fixedly connected with the first installation disc. A plurality of bolts are in threaded connection between the first mounting ring and the second mounting ring, a second ventilation barrel is fixedly connected to the top of the second mounting ring, a sealing assembly is installed at the top of the second ventilation barrel, a fixing ring is installed on the outer wall of the second ventilation barrel, and a sleeve is fixedly connected to the outer wall of the fixing ring; according to the utility model, the fan assembly is arranged; the fan can accelerate air flow an