NOVELTY - Packaging device comprises driving motor for rotating rotary shaft, coupling connection block connected to driving motor, coupling set for delivering rotational force to packaging machine shaft and is located on central part of coupling connection block, waterproof housing installed on lower end of lower bearing and on upper end of upper bearing, packaging machine shaft placed on central axis of upper and lower bearings and protruding downwards of waterproof housing, and impeller for removing air bubbles generated in an aeration tank and is combined to central axis of packaging machine shaft.    USE - The device is useful for decomposing fermented pig manure (claimed).    ADVANTAGE - The device is easy to maintain, has improved structure, prevents failure of the drive motor, suppresses the noise generated due to vibration, controls the vibration by stably rotating the impeller shaft, prevents overloading and additional vibration through the elastic blocks attached to the coupling set, and improves durability.    DETAILED DESCRIPTION - Packaging device comprises a driving motor (210) for rotating a rotary shaft by electric power and is located below the rotary shaft, a coupling connection block (220) having a predetermined height exposed to the rotary shaft of the driving motor and is connected serially downward of the driving motor, a coupling set (230) for delivering rotational force of the driving motor to a packaging machine shaft by connecting the rotary shaft and the driving motor and is located on the central portion of the coupling connection block, a waterproof housing (240) for combining a waterproof cover and a retainer in the lower pert of a lower bearing and is installed on the lower end of the lower bearing and on the upper end of a cylindrical upper bearing and is serially connected to the downward of the connecting block, a packaging machine shaft arranged on the central axis of the upper bearing and the lower bearing of the waterproof housing and protruding a predetermined length downwards of the waterproof housing other side, which is exposed to the coupling connection block and is longer than the coupling connection block, and an impeller (260) for removing air bubbles generated in an aeration tank and integrally rotating with the packaging machine shaft and is combined on the other end and the central axis of the packaging machine shaft, where the packaging device is installed with an aeration tank of pig manure treatment facility for removing the air bubbles within the aeration tank, which is provided with microbial manure of breed pig feed containing microbe.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the packaging device for decomposition of fermented pig manure.    Driving motor (210)    Coupling connection block (220)    Coupling set (230)    Waterproof housing (240)    Impeller (260)