Electric-biological drip filter purification device for VOC (volatile organic compounds) waste gas

The invention provides an electric-biological drip filter purification device for VOC (volatile organic compounds) waste gas. The purification device comprises an electric-biological drip filter tower, a waste gas distribution device and a spray water circulating device, wherein the electric-biological drip filter tower comprises a tower body which is filled with a microorganism filler and is provided with a sampling hole, and a positive electrode and a negative electrode are arranged in the tower body and are connected with an external adjustable voltage-stabilized power supply; the waste gas distribution device is used for introducing the VOC waste gas from the bottom of the electric-biological drip filter tower, and the spray water circulating device is used for spraying water from the top of the electric-biological drip filter tower; the adjustable voltage-stabilized power supply is used for supplying power. According to the device, electro-catalysis and microbial reaction are combined to purify waste gas