Bottom coating discharger and bottom coating device

The utility model discloses a bottom coating discharger and a bottom coating device. The discharging device comprises a discharging device body and a striker plate, a feeding pipe of the discharging device body is used for being communicated with a coating bin of an existing waterproof coiled material machine. A long-strip-shaped gap-shaped discharging port is formed in the bottom of the discharging device body, a material blocking plate matched with the discharging port and a first driving motor are arranged outside the discharging port, the two ends of the material blocking plate are installed below the bottom of the discharging device body through rotating shafts respectively, the upper portion of the material blocking plate blocks the lower portion of the discharging port, and the rotating shafts are further connected with the first driving motor. According to the utility model, the paint flow is controllable, the thickness of the coating is uniform, and the construction quality isstable. 本实用新型公开了一种底涂出料器及