The invention discloses an adsorption type continuous air-flotation deoiling device. The adsorption type continuous air-flotation deoiling device comprises a tank body. A row of overflow holes and an overflow groove are formed in the side wall of the tank body. The overflow groove is connected with a liquid outlet pipe. The adsorption type continuous air-flotation deoiling device is characterized in that two opposite side walls of the interior of the tank body are each provided with a plurality of grooves, a plurality of partition boards are arranged between the two side walls, each partition board is installed in the two corresponding opposite grooves, and oil absorption blankets are installed on the partition boards; an air-flotation deoiling chamber is formed between every two adjacent partition boards, and dissolved air diffusion pipes are arranged at the bottoms of the air-flotation deoiling chambers and connected with an outlet of an external dissolved air pump. The adsorption type continuous air-flotation deoiling device is suitable for deoiling of an electrolyte in the high-purity metal electrolyzing process, oil and water can be completely separated, the separation effect is good, cleaning is convenient, and operation is easy and convenient.