The present application relates to a kind of multistage energy dissipation type drainage energy dissipation well, including well cavity, baffle mechanism, slide bar transmission mechanism, cover plate driving mechanism, cover plate, gear driving mechanism, vertical stirring mechanism and horizontal stirring mechanism, well cavity is divided into baffle energy dissipation chamber, water mat energy dissipation chamber, transition chamber, stirring energy dissipation chamber, power chamber and outlet chamber, baffle energy dissipation chamber is far from the upper portion of the side wall of outlet chamber side, water inlet
pipe is communicated with being arranged, outlet chamber is far from the bottom of the side wall of transition chamber side, outlet
pipe is communicated with being arranged. By baffle mechanism, the
water flow that enters baffle energy dissipation chamber is dropped and is dissipated, simultaneously, baffle mechanism drives slide bar transmission mechanism to move downward and successively drives gear driving mechanism, vertical stirring mechanism and horizontal stirring mechanism to rotate, can be stirred to the
water flow in water mat energy dissipation chamber and stirring energy dissipation chamber, simultaneously, cover plate driving mechanism can drive each cover plate
dynamic switching one energy dissipation, two energy dissipation or three energy dissipation mode according to
water level change, improve energy dissipation efficiency.