Streamline noise reduction and drainage telescopic device

The invention discloses a streamline noise reduction and drainage telescopic device which comprises two rows of supporting boxes which are correspondingly arranged, supporting cross beams are correspondingly installed between the corresponding supporting boxes on the two sides, streamline steel plates are further installed on the upper end faces of the supporting boxes on the two sides, and the installation direction of the streamline steel plates on the two sides is perpendicular to the installation direction of the supporting cross beams. The inner side ends of the two streamline steel plates are further provided with streamline F steel protruding upwards, and a plurality of streamline middle longitudinal beams which are evenly spaced and consistent in streamline outline are further installed between the streamline F steel on the two sides. According to the device, the streamline F steel is adopted on the two sides, the streamline middle longitudinal beam is adopted in the middle position, impact vibration