A muffler for marine diesel engine

The utility model discloses a muffler for marine diesel engine, the novel nipple rectifier comprises a cylindrical shel, the central point of the one end of barrel puts and is provided with the air inlet, and the central point of the other end puts and is provided with the gas outlet, be provided with the baffle in the barrel, the baffle is used for divideing into the barrel air intake chamber andgiving vent to anger the cavity, the muffler still includes a plurality of inner tube, it perforates evenly to have arranged a plurality of on the baffle, the inner tube one -to -one sets up in perforating, the tip that the inner tube is located the cavity of giving vent to anger is curved curved, bending angle is no longer than 90, the inner tube includes inlayer, sound absorbing layer and skinthat from interior to exterior set gradually, the inner wall cross -section of inlayer sets up to zigzag shaped. The utility model discloses an inner wall of inner tube sets up to zigzag shaped, and the tip that the inner tube