Landscape river aeration device and aeration method

The invention mainly discloses a landscape river aeration device and aeration method. The technical scheme is as follows: the device comprises a mounting rack, a gas inlet unit, a main pipeline, an aeration pipe and a rotary impeller, wherein the main pipeline is connected with a gas-liquid mixture and a bubble generator; the gas inlet unit comprises an air inlet pipe, a high-pressure water inlet pipe and an oxygen gas inlet pipe; the aeration pipe is composed of four aeration branch pipes which communicate with each other end to end; a connecting pipe is arranged between the two aeration branch pipes which are symmetrically arranged; the rotary impeller is installed on the connecting pipe; and the aeration branch pipes and connecting pipes are respectively provided with a sprayer on which a diaphragm is covered. The method comprises bubble aeration and surface aeration, has the advantages of simple installation, stable structure, favorable firmness and reasonable design, and is beneficial to implementing lar