High pressure movable joint and movable jointing method

The invention discloses a high pressure movable joint and a movable jointing method. According to the high pressure movable joint and the movable jointing method, a high pressure movable jointing mode under end face metal hard sealing and end face double O-shaped ring flexible sealing dual safe is adopted, wherein the hard sealing is the end sealing under two metal short joints; the flexible sealing is double end double O-shaped ring sealing; little pre-pressing force is needed for sealing; and the assembling and disassembling are convenient to carry out; the passing high medium pressing can be sealed; once being damaged, the O-shaped sealing ring can be replaced by unscrewing a screw sleeve, thus the movable joint is longer in service life, and is safe and reliable; and the cost in use is lower in the long term; specifically, the high pressure movable joint can be used in terrible environment, such as the environment with sulfur, and the use value and the economy value can be embodied better.