A kind of rolling type filter device of what is closed in this creation system,Equipped with a lautertuns,The lautertuns is equipped with water input terminal and water output end is connected to water space capacity； An at least diversion seat is arranged in the what water space capacity,An outer flow passage is formed between the diversion seat and the water space capacity,An inner flow passage is equipped with inside the diversion seat； An at least power unit sets the what lautertuns,A water flow or gas push pressure are generated to the what outer flow passage and inner flow passage respectively； The one first filter element what inner flow passage inner region is separated out one first space,It is set in first space into there is plural first bio-carrier； The one second filter element what outer flow passage inner region is separated out a second space,It is set in the second space into there is plural second bio-carrier； Make first,Two bio-carriers can fill part and waste water,It uses and improves nitrifier decomposition efficiency and the speed of growth.本創作係關於一種翻滾式過濾裝置，設有一過濾槽，該過濾槽設有水輸入端及水輸出端連接至容水空間；至少一導流座設置於該容水空間內，該導流座與該容水空間之間形成有一外流道，該導流座內部設有一內流道；至少一動力單元設於該過濾槽，分別對於該外流道及內流道產生一水流或氣體推動壓力；一第一過濾單元於該內流道內區隔出一第一空間，該第一空間內設入有複數第一生物載體；一第二過濾單元於該外流道內區隔出一第二空間，該第二空間內設入有複數第二生物載體；使第一、二生物載體可以充份與污水接觸，藉以提高硝化菌分解效率及生長速度。
