Self-priming-pump-equipped packaging bottle

A self-priming-pump-equipped packaging bottle, comprising:

• a tubular bottle body, a piston, an upper seal assembly, and a lower seal assembly;
• the piston being installed in a lower part of the tubular bottle body;
• the upper seal assembly being fixed in an upper part of the tubular bottle body;
• the lower seal assembly being fixed in a middle part of the tubular bottle body between the piston and the upper seal assembly;
• the upper seal assembly, the lower seal assembly and the tubular bottle body jointly forming a closed material-feeding chamber;
• and the lower seal assembly, the piston, and the tubular bottle body jointly forming a closed material-storing chamber;
• the lower seal assembly including a seal seat and an elastic sealing gasket, the seal seat having a through hole communicating the material-feeding chamber and the material-storing chamber, the elastic sealing gasket covering the through hole from a side corresponding to the material-feeding chamber;
• and the seal seat is in connection with the tubular bottle body;
• and
• the upper seal assembly having an umbrella-shaped member, a hollow material-feeding column, a support post, and an end sealing cap;
• the end sealing cap being fixed inside the umbrella-shaped member through the support post;
• an outer wall of the hollow material-feeding column closely fitting the support post and extending inward from an opening at an upper end of the umbrella-shaped member;
• a bottom surface of the hollow material-feeding column, the support post, and the end sealing cap jointly forming a material outlet;
• and a lower end of the umbrella-shaped member being in interference fit with the seal seat.