The invention discloses a multifunctional iron kettle, comprising an upper kettle body, a lower kettle body, and a kettle cover. The upper kettle body is provided with kettle lugs. The top of the upper kettle body is provided with a kettle mouth whose size is corresponding to the size of the kettle cover. The kettle lug is connected with a lifting handle. The lower kettle body is in a wok shape. The upper part of the lower kettle body is provided with a spout which is also used as a wok handle. The outer side of the spout is provided with a heat insulation layer. A water outlet on the inner side of the lower kettle body is provided with a detachable baffle cover. The upper part of the inner side of the lower kettle body is also provided with a streamer support. The upper kettle body and the lower kettle body are combined through a thread structure. The upper kettle body and the lower kettle body are connected by threads. The multifunctional iron kettle has a plurality of functions, and can be used as a teakettle or a wok or a steamer as needed.