A packed tower for a scrubber characterised in comprising: a horizontal spray module, disposed at an upper portion of a lower inlet module, which sprays water while causing the exhaust gas that flows into the interior thereof to rise; a screw spray module, disposed at an upper portion of the horizontal spray module, and comprising a screw housing in the shape of a cylinder having an open upper portion, open lower portion, and a hollow interior, a screw support shaft disposed on the central axis of the screw housing, a screw blade having an inner space formed as a screw passage in the shape of a whirlwind, and at least 2 screw spray nozzles which spray water on exhaust gas that flows through the screw passage and which are spaced along the inner circumferential surface of the screw housing, which sprays water while causing exhaust gas which flows into the interior thereof to rise in whirlwind form; a venturi spray module 140), disposed at an upper portion of the screw spray module, and comprising a venturi housing in the shape of a cylinder having an open upper portion, open lower portion, and a hollow interior, a venturi plate in the shape of a cone wherein the lower side inclines upward from the external diameter towards the internal diameter and which has a venturi hole in the centre, and a venturi spray nozzle that sprays water through the venturi hole, and a venturi guard which is formed in the shape of a plate with a diameter that corresponds to or is larger than the diameter of the venturi hole and which is disposed at a distance from an upper portion of the venturi hole which sprays water while causing the exhaust gas that flows into the interior thereof to flow upwards through the central area; a pall spray module, disposed at an upper portion of the venturi spray module, which sprays water while causing the exhaust gas that flows into the interior thereof to make contact with wet surface of stacked pall rings; and a gas spray module, disposed at an upper portion of the pall spray module, which sprays captured gas in the exhaust gas a horizontal spray module, disposed at an upper portion of a lower inlet module, which sprays water while causing the exhaust gas that flows into the interior thereof to rise; a screw spray module, disposed at an upper portion of the horizontal spray module, and comprising a screw housing in the shape of a cylinder having an open upper portion, open lower portion, and a hollow interior, a screw support shaft disposed on the central axis of the screw housing, a screw blade having an inner space formed as a screw passage in the shape of a whirlwind, and at least 2 screw spray nozzles which spray water on exhaust gas that flows through the screw passage and which are spaced along the inner circumferential surface of the screw housing, comprising a screw housing in the shape of a cylinder having an open upper portion, open lower portion, and a hollow interior, a screw support shaft disposed on the central axis of the screw housing, a screw blade having an inner space formed as a screw passage in the shape of a whirlwind, and at least 2 screw spray nozzles which spray water on exhaust gas that flows through the screw passage and which are spaced along the inner circumferential surface of the screw housing, which sprays water while causing exhaust gas which flows into the interior thereof to rise in whirlwind form; a venturi spray module 140), disposed at an upper portion of the screw spray module, and comprising a venturi housing in the shape of a cylinder having an open upper portion, open lower portion, and a hollow interior, a venturi plate in the shape of a cone wherein the lower side inclines upward from the external diameter towards the internal diameter and which has a venturi hole in the centre, and a venturi spray nozzle that sprays water through the venturi hole, and a venturi guard which is formed in the shape of a plate with a diameter that corresponds to or is larger than the diameter of the venturi hole and which is disposed at a distance from an upper portion of the venturi hole a venturi housing in the shape of a cylinder having an open upper portion, open lower portion, and a hollow interior, a venturi plate in the shape of a cone wherein the lower side inclines upward from the external diameter towards the internal diameter and which has a venturi hole in the centre, and a venturi spray nozzle that sprays water through the venturi hole, and a venturi guard which is formed in the shape of a plate with a diameter that corresponds to or is larger than the diameter of the venturi hole and which is disposed at a distance from an upper portion of the venturi hole which sprays water while causing the exhaust gas that flows into the interior thereof to flow upwards through the central area; a pall spray module, disposed at an upper portion of the venturi spray module, which sprays water while causing the exhaust gas that flows into the interior thereof to make contact with wet surface of stacked pall rings; and a gas spray module, disposed at an upper portion of the pall spray module, which sprays captured gas in the exhaust gas