PROBLEM TO BE SOLVED: To provide a discharging device where the device can be made compact while reducing a pressure loss.SOLUTION: A discharging device 1000 comprises: a counter electrode 700 at a low-potential side in which a plurality of flat plate parts 731 aligned substantially in parallel and having a longitudinal shape and a flat-plate shape, first connection parts 733R for connecting ends of the flat plate parts 731 on each one side in a longitudinal direction, and second connection parts 733L for connecting ends of the flat plate parts 731 on each other side are formed integrally on one conductive plate-like body a linear body discharge electrode 300 at a high-potential side having potential higher than that of the counter electrode 700 and arranged along the longitudinal direction between the flat plate parts 731 a lower frame 800 made of insulation material supporting the counter electrode 700 below the counter electrode 700 and the discharge electrode 300 a right intermediate frame 500 covering a connection part 733 of the counter electrode 700 from above and made of the insulation material and a left intermediate frame 600 covering the connection part 733 of the counter electrode 700 from above and made of the insulation material.