The invention relates to an integrated submersible photoelectromagnetism river and
lake water purifying method and a device thereof. In the method, a
sewage inhalation device, a gas-water mixer and a purifier which are successively connected are arranged at the bottom of a
stream, a lake, an artificial lake, a fountain or a scenery
fish pond. A water outlet of the purifier is arranged at a position near the water surface of the river and
lake water;
sewage water to be purified is inhaled by the
sewage water
inhalation device and is sprawled into the gas-water mixer in a
jet flow way and at high speed after being magnetized strongly by a magnetizer; the sewage water in a
gas mixing chamber of the gas-water mixer is forced to be mixed with
ozone in the
gas mixing chamber to compose a gas-liquid
mixed flow; the mixed fluid is injected into the purifier; the high speed jet is utilized to involve and inhale sewage water near a water inlet of the purifier into the purifier; a photoelectric combined
catalytic oxidation treatment is carried out on the sewage water mixed with the
ozone in the purifier; then, outlet water forms a level circulating
water flow on the periphery of the water outlet of the purifier to realize gradient exchange purification of the whole river and
lake water. The integrated submersible photoelectromagnetism river and lake water purifying method and the device thereof have the advantages of less
land occupation, little investment and
operating cost and good purifying effect.