The invention relates to a rotary type culture water purifying device which comprises an outer
barrel and inner barrels which are arranged in the outer
barrel, wherein a vertical
clapboard is arrangedbetween the outer
barrel and the inner barrel of the outermost layer, a water inlet
pipe is arranged between the outer barrel at one side of the
clapboard and the adjacent inner barrel, water inlet holes are formed at the lower part of the water inlet
pipe, and water passing holes are formed on the side wall of the inner barrel of the outermost layer at the other side of the
clapboard; a verticalclapboard is also arranged between two
layers of adjacent inner barrels from bottom to top, and water passing holes are alternately arranged on the side wall of the inner barrel of the outer layer atone side of the clapboard and the side wall of the inner barrel of the inner layer at the other side of the clapboard; a
water discharge pipe is arranged in the centremost inner barrel, a vertical clapboard is arranged between the
water discharge pipe and the centremost inner barrel, and
water discharge holes on the water
discharge pipe and water passing holes on the centremost inner barrel are respectively positioned on the two sides of the clapboard; and the inner barrels and the outer barrel are filled with filtering material
dielectric layers, and the water inlet holes, the water passingholes and the water
discharge holes are lower than the top surfaces of the filtering material
dielectric layers. The rotary type culture water purifying device has the characteristics of convenient movement and installation, good purifying effect, low manufacturing cost and the like, and is favorable for regulating and controlling the culture
water quality, improving the culture effect and savingthe water for culture.