Cascade type cyclone separator

The utility model discloses a cascade whirl separator, belonging to fluid solid separator and fluid fluid separator. The utility model is composed of a swirler and a whir separate device; wherein the swirler is composed of a feeding cavity, a director, an overflow pipe, a cylinder, a cone and an underflow pipe etc; the whirl separate device is composed of two serial connected whirl separator; director entrance in the second swirler is directly linked to an flowing open of the first swirler, thus underset of the first swirler directly enter the second swirler to be separated for the second time; overflow in the second swirler directly enter into a first swirler cavity first and then is exhausted or lead by an added leading pipe. The utility model has the advantages of a high separation effect; a compact structure; a low cost; a small occupy space; a stable inner flow; lowering the swirler energy consumption; as simple in structure, the utility model has a wide use. The utility model is suitable in fluid solid, liquid liquid and air fluid separation in lines as petroleum, chemical, environmental protection, medicine, food and other industries, in particular to an occasion which is compact in laying space and widely verified in operation condition.