The invention relates to a temperature-controllable portable multifunctional pressure chamber, which is characterized in that a confining pressure chamber is connected with the oil source of an external confining pressure loading device by a confining-pressure oil inlet; an
axial pressure chamber is connected with the oil source of an external
axial pressure loading device by an
axial pressure oil inlet; an axial pressure
piston is arranged in the axial pressure chamber, and enters the confining pressure chamber after passing through the head cover of the confining pressure chamber; a sample cylinder is composed of a side wall, a base and an upper pressing board, wherein the base is provided with a porous disc, and samples are placed on the porous disc and then covered by a head cover; a spiral refrigerating-fluid circulating
pipe winding the cavity of the confining pressure chamber and the base and the upper cover of the sample cylinder are internally carved twin-spiral refrigerating-fluid circulating slots respectively, and connected with an external refrigerating
plant; temperature sensors arranged in the confining pressure chamber and on the base and the upper cover of the sample cylinder are respectively connected with an external temperature controller; the external temperature controller is connected with the external refrigerating
plant, and the porous disc is connected with a water replenishing or drainage connector. The temperature-controllable portable multifunctional pressure chamber of the invention has the characteristics of accurate and independent multi-point
temperature control and multifunction and is easy to carry, can be used with
freeze thawing cycling testers, triaxial testers and
CT scanners, and does not need to be performed installation and sample taking for many times and cause disturbances on samples, thereby simplifying the test process.