The fine chemical barrel on sales that is convenient for discharging comprises a barrel, the top of the barrel is provided with an opening, the inner side of the barrel at the opening is provided with an inwardly inclined annular conical surface, and the barrel at the opening is provided with an inwardly inclined annular conical surface. The outer side of the barrel is threadedly connected with a cover body, the top of the inner side of the cover body is provided with a circular truncated sealing block that matches with the annular conical surface, the top of the cover body is provided with a pressurizing component, and the pressurizing component includes a piston cylinder, piston, piston rod, air inlet pipe, air outlet pipe, one-way valve one and two-way valve two, the piston cylinder is fixedly connected with the top of the cover body, the piston is slidably arranged inside the piston cylinder, the piston rod Set vertically in the middle of one side of the piston.

The above is a brief introduction to the knowledge of Fine chemical barrel on sales that is easy to discharge.