The instant disclosure relates to a bidirectional exhaust device and a bidirectional air exited structure. The bidirectional exhaust device includes an air charged structure and a bidirectional air exited structure. The air charged structure has an air charged end and an opposingly arranged air exited end. The bidirectional gas exited structure includes a lower plate, an upper plate and a valve layer. The lower plate is arranged at the air exited end, wherein the lower plate has a first air chamber, a second air chamber on the side opposing to the air exited end and two first openings which connect the two air chambers respectively. The upper plate is mounted on the lower plate on the side opposing to the air exited end, wherein the upper plate has a first air exited hole and a second air exited hole, and wherein the second air exited hole corresponds to the second air chamber. The valve layer is arranged between the upper plate and the lower plate and has a flexible valve plate. The valve plate is parted into a first section and a second section, wherein the first section has a second opening which connects to the first air chamber and the first air exited hole, the second section selectively close the second air exited hole.本創作提供一種雙向排氣裝置及其雙向出氣結構。該雙向排氣裝置包括充氣結構以及雙向出氣結構。充氣結構具有相對的進氣端及出氣端。雙向出氣結構包括下蓋板、上蓋板及閥板。下蓋板設置於出氣端,下蓋板背向出氣端的一側設有第一氣室及第二氣室,並開設有分別對應連通於兩氣室的第一通口。上蓋板裝設於下蓋板背向出氣端的一側,並開設有第一出氣口及第二出氣口,其中第二出氣口對應於第二氣室。閥板設置於上蓋板及下蓋板之間,並設有具有撓性的閥片,閥片被區分為相連的第一區塊及第二區塊,其中第一區塊開設有用以導通第一氣室及第一出氣口的第二通口,第二區塊選擇性地封閉第二出氣口。1‧‧‧排氣裝置10‧‧‧充氣結構11‧‧‧進氣端12‧‧‧出氣端20‧‧‧雙向出氣結構21‧‧‧下蓋板211‧‧‧第一氣室212‧‧‧第二氣室213‧‧‧第一通口214‧‧‧凸柱215‧‧‧外環部22‧‧‧上蓋板221‧‧‧第一出氣口222‧‧‧第二出氣口223‧‧‧皮管接頭224‧‧‧固定孔23‧‧‧閥板231‧‧‧固定孔232‧‧‧閥片2321‧‧‧第一區塊2322‧‧‧第二區塊2323‧‧‧第二通口
