The present invention relates to an environmentally-friendly integrated water purification system having an artificial fish bank function for allowing a large amount of fishes to live therein, a fall preventing function for children and adults using a river, and a function for naturally purifying contaminated river water. The environmentally-friendly integrated water purification system, according to the present invention, comprises: a concrete footing (700) which is installed on the bottom of a waterway a movable weir water gate (500) which is installed on the top end of the concrete footing (700) a screw feeder (601) which is coupled to a screw housing (600) a rotation motor (602) which is formed on the top end of the screw feeder (601) a floating matter inlet (605) which is formed in the bottom end of the screw housing (600) a floating matter outlet (606) which is formed in the top end of the screw housing (600) a conveyor belt (800) which is formed in the entrance of the floating matter outlet (606) an ecological river waterway a riverside which is formed in the top end of an artificial fish bank structure (2000) and is used as a bicycle lane and a walkway fall prevention mesh adjustors (300) which are installed in both inner sides of the river (100) adjusting rods (301) which are coupled to the fall prevention mesh adjustors (300) a fall prevention mesh (302) which is coupled to the adjusting rods (301) a floating vessel (303) which allows the fall prevention mesh (302) to float and a water purifying weight (102) which is formed in the fall prevention mesh (302).COPYRIGHT KIPO 2016하천(100)을 굴착 준설하여 수로를 정비한후 수로바닥에 기초 콘크리트(700)을 설치하는 구조기초콘크리트(700) 상단에 가동보 수문(500)을 설치하는 구조가동보 수문(500)의 일측에 원형의 스크류하우징(600)과 결합되는 스크류이송기(601)의 구조스크류 이송기(601)의 상단에 구성되는 회전모타(602)의 구조스크류하우징(600)의 하단에 구성되는 부유물질 유입구(605)의 구조스크류하우징(600)의 상단에 구성되는 부유물질배출구(606)의 구조부유물질배출구(606)의 입구에 구성되는 이송용 콘베어 벨트(800)의 구조하천의 둔치 양안에 인공산란장(1000)과 물고기 이동구(1001)가 층층으로 구성되어 있는 인공어초 구조물(2000)을 설치하여 물고기를 비롯한 수생생물의 생
