The invention discloses a jet atomization device and a flotation device with the same. The jet atomization device comprises a jet atomization device; the jet atomization device further comprises a double-connection-wheel jet agitation mechanism and a shearing emulsification device; the jet atomization device comprises an atomization cylinder, a rotating shaft, a laminar flow guide disc, a conicalflow guide cover and a flow guide cover chassis. The double-connection-wheel jet agitation mechanism comprises a flotation tank, a supporting frame, a pretreatment bin, a rotary connecting rod, a driving impeller, an agitation impeller, a flow guide cylinder and a circulating pump. The shearing emulsification device comprises an emulsification tank, a medicament spray head, a fixed fluted disc, arotary fluted disc and a speed compensation motor. Foaming agent atomization, collecting agent emulsification, size pre-mixing and flotation are integrated, and therefore, equipment size and occupiedarea are greatly reduced; and meanwhile, the energy consumption of ore pulp is decreased; the equipment has a foaming agent atomization function, a collecting agent emulsification function and a jet air suction drive stirring flotation function, and therefore, mineral separation efficiency is improved.