The invention discloses a combined type steam oven and a self-
odor removal method thereof. The combined type steam oven comprises a box body and an inner cavity, and a box door is installed at an end opening of the inner cavity. The combined type steam oven is characterized in that a left
odor removal
pipe and a right
odor removal
pipe are separately arranged on two sides of the inner cavity, the left odor removal
pipe and the right odor removal pipe communicate with the inner cavity, an
exhaust pipe and a
fresh air machine are arranged on the back surface of the box body, the
exhaust pipe is connected with the right odor removal pipe, and the
fresh air machine is connected with the left odor removal pipe. An air changing odor removal
system is additionally arranged in the box body, the purpose of thorough odor removal is achieved by changing air in the steam oven, so that the steam oven continuously steam and bake different food, and
mouthfeel and odor of the food cannot be affected. A reversing air bellow is further arranged to reach the purpose of automatically changing
wind direction of the left odor removal pipe and the right odor removal pipe, so that two kinds of
wind flow directions are separately formed in the inner cavity, complete
extrusion and changing the air in the steam oven are realized by virtue of the two kinds of
wind flow blowing, and thorough odor removal is achieved.