Noise reduction chamber

The invention discloses a noise reduction chamber used for reducing operating noise of a concrete pump. The noise reduction chamber comprises a hood body (3) for containing the main body of the concrete pump, a hopper hood (1) used for containing a hopper of the concrete pump and communicated with the hood body, and a ventilator. A lateral wall of the hood body (3) is provided with an inlet-outlet gate (31) for facilitating the entering and exiting of the concrete pump into or out of the noise reduction chamber. The noise reduction chamber is specially designed for the concrete pump. The hopper hood (1) prevents the noise of the concrete pump from being transferred outside through a hopper part, effectively isolates the noise from the outside environment and reduces the noise pollution tothe environment when the concrete pump works, thereby effectively isolating and absorbing various noises generated during the operation of the concrete pump and reducing the noise pollution caused bythe concrete pump.