Integrated chromatographic column with liquid storage tank

The utility model disclose an integrated chromatographic column with a liquid storage tank, which comprises a chromatographic column body and is characterized in that a vent hole is formed in the side wall of the chromatographic column body and equipped with a glass plug valve or a straightway valve; the liquid storage tank communicated with the chromatographic column body is arranged at the upper part of the chromatographic column body and is hermetically connected with the chromatographic column body through a sealing part. The integrated chromatographic column disclosed by the utility model has the advantages as follows: an eluent is not required to be added for a long time, chromatographic column pressure with a certain precision can be kept, and the pressure can be adjusted flexibly according to the height of a dropping funnel and the height of liquid level in the dropping funnel; meanwhile, all plastic and rubber components are abandoned, so that the compatibility of the eluent and the equipment is broa