The invention discloses a module-type combined flotation machine and a modularized cell body thereof and comprises the existing floatation machine and a cell body thereof. A room cell body with a required volume is formed by a plurality of modularized cell bodies in parallel and series and the floatation machine with required specification is formed according to required room number. With the adoption of the module-type combined floatation machine and the modularized cell body thereof, flotation machines with a plurality of specifications can be formed according to demands, thus being capableof effectively increasing efficiency, reducing production and transportation cost, improving processing accuracy, being easy for large-scale production, and achieving the characteristics that cannot be achieved by the existing floatation machine, such as low cost, large-scale and high efficiency. Therefore, the module-type combined floatation machine and the modularized cell body thereof are completely novel in the coal preparation industry.