High-temperature oily sewage air flotation bubble cutting device

The utility model discloses a high-temperature oily sewage air floatation bubble cutting device which comprises an upper section and a lower section, the upper section and the lower section are a pre-rotational flow section and a bubble cutting mixing section respectively, the pre-rotational flow section comprises a pre-rotational flow cylinder, and the bubble cutting mixing section comprises a micropore pipe and an air cylinder located on the outer side of the micropore pipe. A closed compressed air cavity is formed between the inner wall of the air cylinder and the outer wall of the micropore pipe, the air cylinder is provided with an air inlet, the pre-cyclone cylinder is communicated with the micropore pipe, and the pre-cyclone cylinder is provided with a water inlet arranged in the tangential direction of the pre-cyclone cylinder. According to the utility model, the microporous pipe is used as a partition between the air cavity and the water cavity, and the micro-pores on the microporous pipe are utilize