Fine slag collecting and discharging device of dry type slag removal system

The utility model discloses a fine slag collecting and discharging device of a dry type slag removal system. Comprising a fine slag screening device (1) in butt joint with an open groove (12) of a dry type slag removal system, a fine slag collector (2) connected to the lower portion of the fine slag screening device (1), a fine slag storage box (5) connected with a slag discharging opening in the lower end of the fine slag collector (2), a slag discharging pipe connected to the lower end of the fine slag storage box (5) and first movable baffles (4) arranged at an inlet and an outlet of the fine slag storage box (5) respectively. And the fine slag screening device (1) is provided with a plurality of slag falling openings (9). According to the fine slag collecting and discharging device of the dry type slag removal system, the dust amount in flue gas at the tail of a boiler is reduced, abrasion of the heating surface of the boiler is relieved, air leaked from the bottom of the boiler is within the design range