A multifunctional rotary cutting head is provided for cutting devices as well as portable devices equipped with such a cutting head. The cutting head comprises a rotary housing that has at least a top part and a bottom part and accommodates a support for one or more cutting elements or tools. The support is penetrated by an axial drive shaft on which the support is mounted. The support for the cutting element(s)or tool(s) has two leads to selectively mounting the cutting element(s) or tool(s), i.e. a first level designed to mount strands of cutting wire and a second level designed to mount an interchangeable cutting blade.