The invention mainly discloses a
microorganism utilizing park water purifying device and a purifying method thereof. The technical scheme is as follows: the
microorganism utilizing park water purifying device comprises a
bed body, a treatment bin positioned below the
bed body and a
solar energy supply device positioned above the
bed body, wherein the
solar energy supply device comprises a protection cover, a photovoltaic panel and a containing bin; a filter area, an aerobic area and an anaerobic area are sequentially arranged in the treatment bin from left to right; a
precipitation area is arranged below the filter area, the aerobic area and the anaerobic area; and a power device is arranged on the outer side of the treatment bin and connected with the
solar energy supply device. The water purifying device is put on the water surface, and aquatic plants are grown on the bed body; and the
sewage enters the aerobic area from the filter area and then goes into the anaerobic area and is finally discharged through a water-out
pipe. In the invention, original
ecological environment is not damaged, the solar
energy supply device supplies energy, and thus the operation cost is low; the
water quality is treated by the treatment bin, the treatment efficiency is high, and the effect is good; and the power device drives the water purifying device to move freely, the treatment area is wide, and the popularization and application are facilitated.