Dust and noise reduction device for bridge construction

The invention discloses a dust fall and noise reduction device for bridge construction, the dust fall and noise reduction device comprises a first module and a second module which are assembled in the horizontal direction through an assembly part, and each of the first module and the second module comprises a noise reduction assembly which comprises an assembly base, a protection plate and a first sound insulation plate; the dust falling assembly comprises a dust falling cavity, a spraying part is arranged on the dust falling cavity, a U-shaped opening extending from one side of the dust falling cavity to the other side of the dust falling cavity in the length direction of the dust falling cavity is formed in the dust falling cavity, and the dust falling cavity is divided into an upper cavity body and a lower cavity body, and the other side of the upper cavity body is communicated with the other side of the lower cavity body through the U-shaped opening; the two openings of the first module and the second mod