The utility model discloses a flotation prosthetic devices of combined pollution deposit, installing involving vibrations sieve, hydraulic cyclone, a mixing pulping barrel, flotation column, burning burning furnace, the 2nd mixing pulping barrel, flotation cell and agitating unit, this utility model equipment is simple, and throughput is big, the small investment, and the energy consumption is little, and running cost is with low to convenient operation, controllability are strong, have greatly reduced the processing cost of disposal of deposit.