Airflow treatment device of marine engine room

The invention relates to the technical field of airflow treatment equipment, and particularly discloses an airflow treatment device of a marine engine room. The second silencing barrels are arranged in the first silencing barrel at intervals in the axial direction of the first silencing barrel; the column bodies are arranged in the second silencing barrel at intervals in the axial direction of the second silencing barrel; the first heat exchange assembly is mounted between the first silencing barrel and the second silencing barrel; the second heat exchange assembly is mounted between the second silencing barrel and the column body; the heat exchange pipe is internally provided with a heat exchange medium, the outer wall of the heat exchange pipe abuts against the first heat exchange assembly and the second heat exchange assembly correspondingly, the heat exchange pipe is used for conducting heat exchange with the first heat exchange assembly and the second heat exchange assembly, and the two ends of the heat