Explosion-proof glass fiber reinforced plastic septic tank

The utility model discloses an explosion-proof glass fiber reinforced plastic septic tank, and belongs to the technical field of septic tanks. The septic tank comprises an upper tank body and a lowertank body, two partition plates are arranged between the upper tank body and the lower tank body at equal intervals; the septic tank is divided into three working areas by the two partition plates; asewage disposal port is formed above each working area; a top cover is arranged on the sewage disposal port; an exhaust port is formed in one side of the sewage disposal port; an automatic exhaust device is arranged on the exhaust port; the automatic exhaust device comprises a shell, a non-woven fabric bag is arranged at the bottom of the shell, activated carbon is contained in the non-woven fabric bag, a circular opening is formed in the top of the shell, a movable block is installed on the circular opening, a hollow cylinder is arranged in the middle of the movable block, a plurality of airholes are formed in the wal