The invention relates to a rotary multifunctional oven and a method thereof. The rotary multifunctional oven comprises a pot body, a pot cover, a blower
assembly and a heater, wherein the pot body is provided with a rotary basin for food
rollover, a relatively-sealed cavity is formed by the pot body and the pot cover together through enclosing, and the heater and a hot flow air passage which are communicated with the rotary basin are arranged in the cavity corresponding to the rotary basin. The rotary multifunctional oven is characterized in that the rotary basin is set to be in intermittent rotation, an inertial pushing device is arranged in the rotary basin, foods and the inertial pushing device are pushed during the rotation of the rotary basin and move or roll inertially along the advancing direction when the rotary basin is stopped, the inertial pushing device accelerates the movement or
rollover of the foods, an opening of the rotary basin is upward, and the blower
assembly and the heater generate hot flow and blow the hot flow into the rotary basin, so that part of the foods is heated. The rotary multifunctional oven has the characteristics of simple and reasonable structure, flexibility in operation, uniformity in food heating, good cooking effect, easiness in
assembly / disassembly, easiness in cleaning, and wide range of application.