An air conditioner comprising: an air conditioner body, being provided with an air outlet; and an air output structure, adjusting an air output angle of the air outlet, wherein the air output structure being provided with a plurality of operative configurations; wherein the air output structure comprises a first air deflector rotatably connected to the air conditioner body and opening or closing the air outlet, the first air deflector being provided with a through hole allowing an air flow to pass through; and an air diffusing structure connected to the air conditioner body and moving relative to the air conditioner body to shield or open the air outlet, wherein the air diffusing structure allowing an air flow to pass through and dissipating the passed air flow; wherein the air diffusing structure comprises a plurality of wind wheels, characterized in that the plurality of wind wheels being engaged and driven by a gear structure, each wind wheel comprising an inner rib and an outer ring rib, wherein a first blade group and a second blade group being disposed between the inner rib and the outer ring rib, blades in the first blade group being fixedly connected to the inner rib and the outer ring rib, the second blade group being rotatably connected to the inner rib, and the second blade group being provided with a first position and a second position; wherein: when the second blade group is located at the first position, a plurality of blades in the second blade group and the plurality of blades in the first blade group are arranged at an interval; and when the second blade group is located at the second position, the blades in the second blade group and the blades in the first blade group at least partially overlap in an axial direction of the wind wheels; and the air conditioner comprising a detection device, acquiring an ambient temperature and an ambient humidity; and a controller, being electrically connected to the air output structure and the detection device and switching the operative configurations of the air output structure according to the ambient temperature and the ambient humidity. an air conditioner body, being provided with an air outlet; and an air output structure, adjusting an air output angle of the air outlet, wherein the air output structure being provided with a plurality of operative configurations; wherein the air output structure comprises a first air deflector rotatably connected to the air conditioner body and opening or closing the air outlet, the first air deflector being provided with a through hole allowing an air flow to pass through; and an air diffusing structure connected to the air conditioner body and moving relative to the air conditioner body to shield or open the air outlet, wherein the air diffusing structure allowing an air flow to pass through and dissipating the passed air flow; wherein the air diffusing structure comprises a plurality of wind wheels, characterized in that the plurality of wind wheels being engaged and driven by a gear structure, each wind wheel comprising an inner rib and an outer ring rib, wherein a first blade group and a second blade group being disposed between the inner rib and the outer ring rib, blades in the first blade group being fixedly connected to the inner rib and the outer ring rib, the second blade group being rotatably connected to the inner rib, and the second blade group being provided with a first position and a second position; wherein: when the second blade group is located at the first position, a plurality of blades in the second blade group and the plurality of blades in the first blade group are arranged at an interval; and when the second blade group is located at the second position, the blades in the second blade group and the blades in the first blade group at least partially overlap in an axial direction of the wind wheels; and the air conditioner comprising a detection device, acquiring an ambient temperature and an ambient humidity; and a controller, being electrically connected to the air output structure and the detection device and switching the operative configurations of the air output structure according to the ambient temperature and the ambient humidity. when the second blade group is located at the first position, a plurality of blades in the second blade group and the plurality of blades in the first blade group are arranged at an interval; and when the second blade group is located at the second position, the blades in the second blade group and the blades in the first blade group at least partially overlap in an axial direction of the wind wheels; and the air conditioner comprising a detection device, acquiring an ambient temperature and an ambient humidity; and a controller, being electrically connected to the air output structure and the detection device and switching the operative configurations of the air output structure according to the ambient temperature and the ambient humidity.