Noise-reducing protective device for fishing-boat generator

The invention relates to the technical field of a noise-reducing device for a fishing-boat generator and particularly relates to a noise-reducing protective device for the fishing-boat generator. A generator body is arranged in an inner box; lateral sound-proof cotton groups are respectively arranged between all the side walls of the generator body and all the side walls of the inner box; a plurality of parallel bottom sound-proof cottons are arranged at the bottom part of the generator body; the inner box is arranged in an inner cavity of an outer box; a plurality of springs are fixedly arranged at the bottom part of the inner box; one end of an L-shaped exhausting pipe extends into the inner box and then is communicated with an exhausting pipe of the generator body; the other end of the L-shaped exhausting pipe extends out of the outer box from top to bottom; the outer box is provided with a temperature control water exchanging device; and the outer box is filled with cooling water. The noise-reducing prote