Multi-layer integrated type series-connection vertical telescopic dry-process vibration medium drainage screen

The invention discloses a multi-layer integrated type series-connection vertical telescopic dry-process vibration medium drainage screen. The medium drainage screen comprises a whole machine frame fixed on a support base, a left front-back movement track and a right front-back movement track; vertical supporting moving hydraulic cylinders are installed at the two ends of the upper portion of the left front-back movement rail and the two ends of the upper portion of the right front-back movement rail respectively, and a plurality of layers of screen frames and outer covers provided with screenmeshes are sequentially mounted on the inner side of the whole machine frame from bottom to top; the screen frame and outer cover of each layer comprises four damping devices, a screen frame and outercover body, a dense medium discharging channel and a clean coal and gangue outlet, wherein the screen frame and outer cover body is installed above cross beams arranged in the front-back direction and the left-right direction