The invention relates to a cyclone separator for separating a mixture containing solid particles, liquid and/or gas into a heavy fraction and a light fraction, the separator comprising: - a casing (2) defining a flow space through which the mixture is to flow; - an elongated flow body (5) arranged in the flow space along which the mixture to be separated can be carried; - at least one swirl inducing element (10) arranged between the flow body and the inner casing, the swirl inducing element being curved so as to set the incoming mixture into a rotating movement for the purpose of separating the mixture into the heavy fraction and the light fraction; - discharge means for discharging the separated heavy and light fraction, wherein the discharge means comprise at least one flow passage defined inside said at least one swirl element .