Soundproof device used for marine engine unit

The invention discloses a soundproof device used for a marine engine unit. The soundproof device comprises a high bin, a lower bin and a base, wherein the high bin and the low bin are placed onto thebase after being in contact; sealing soundproof treatment is performed in the high bin; the marine engine unit is arranged in the high bin; an air flue silencer is arranged between the low bin and thehigh bin; an air flue hole of the air flue silencer is positioned in an air outlet of the marine engine unit; and net-shaped ventilating holes are formed in left and right sides of the low bin. The method of combining the high bin and the low bin for use is adopted, so that exhaust efficiency of the marine engine unit in the high bin is effectively improved through the air flue silencer, and noise amount in a waste gas exhaust process is reduced. 一种用于船用发动机组的隔音装置，包括高仓、低仓和底座，所述的高仓和低仓相接触后放置在底座上，所述的高仓内作密封隔音处理，高仓内设有船用发动机组，所述的低仓和高仓之间设有风道消声器，风道消声器的风道口位于船用发动机组的出风口处，低仓的左右两侧均设有网状通风孔。本发明采用高仓和低仓两仓并用的方法，通过风道消声器有效地提高了高仓内船用发动机组废气的排放