Pool oxygenating, water mixing and bait casting device

The invention relates to a pool oxygenating, water mixing and bait casting device used for cultivation of fish, sea cucumbers and the like. The pool oxygenating, water mixing and bait casting device comprises an oxygenating pipe with an input end communicated with an oxygenating pump and is characterized by further comprising a conveying pipe with an input end communicated with a bait pump, a mixing pipe is communicated on an output end of the conveying pipe, the inner cavity of the mixing pipe is divided into a feed cavity and a mixing cavity via a binding hole, an output end of the oxygenating pipe is enclosed, and a by-pass pipe is communicated with an inner cavity of the oxygenating pipe and the mixing cavity of the mixing pipe. By the arrangement, water mixing or bait casting or drug delivering can be performed along with oxygenating, oxygenating effect at the pool bottom is good, and bait or liquid drug can be applied more evenly.