Improved aluminum alloy door and window

The utility model relates to an improved aluminum alloy door and window which comprises a main frame body, the interior of the main frame body is divided into an upper cavity and a lower cavity, the upper cavity is located above the lower cavity, two sets of windows are installed in the upper cavity in a sliding mode, and sealing glass is installed on the rear side in the lower cavity in an embedded mode. At least two sets of equidistant concave connecting frames are fixedly installed on the front sides of the inner top and the inner bottom of the lower cavity, and at least two sets of equidistant protective rods are installed on the front side of the interior of the lower cavity in a clamped mode through the concave connecting frames. The concave frame is rotatably mounted on the periphery of the lower cavity of the main frame body, so that when a person needs to air some large clothes, the person can directly rotate the concave frame to a horizontal state, then the two groups of adjusting rods on the concav