The utility model discloses a micro-nano bubble generating device and a household
water supply pipeline micro-nano bubble
system, and relates to the technical field of household water purification. Structural cooperation of the main body, the one-way valve, the mixing
cutting piece, the rotary
cutting piece, the crushing
cutting piece and the mounting base is provided, so that the micro-nano bubble generating device does not need to be pressurized or provided with various pump bodies required by the micro-nano bubble technology, and the device is simple in overall structure, small, exquisite, high in integration level, small in mounting space and convenient to use. The device is used for mounting various household
water supply pipelines; meanwhile, the device can be directly connected with a household water inlet pipeline and a household water outlet pipeline, multiple cutting of gas can be achieved without pressurization through cooperation of all the structures, and therefore micro-nano bubble water is obtained, micro-nano bubble full treatment is conducted on the whole household
water supply pipeline, and the effects of improving oil
stain washing and the like are achieved; and moreover, various purposes such as
tail-end drinking,
bathing, beautifying, health care, washing, dish washing and the like are beneficially improved.