Sound insulation cotton board based on laminating process

The utility model discloses a sound insulation cotton board based on a laminating process, which comprises a sound insulation board, a partition board is arranged in the middle of the sound insulation board to divide the sound insulation board into a first sound insulation cavity and a second sound insulation cavity, sound insulation cotton is arranged in the first sound insulation cavity and the second sound insulation cavity, and thermosetting felts are arranged on the upper surface and the lower surface of the sound insulation board. Strip-shaped notches are formed in the two sides of each thermosetting felt, activated carbon pads are arranged in the strip-shaped notches, a plurality of adsorption holes are formed in the surfaces of the activated carbon pads, a plurality of sound absorption holes are formed in the surfaces of the thermosetting felts, the sound absorption holes are arranged in a square shape, each sound absorption hole comprises a flaring section and a necking section, the necking sections