Constant temperature and humidity chamber for drying high-moisture sample at low temperature

The utility model relates to the technical field of low-temperature drying of tobacco powder samples, in particular to a constant-temperature and constant-humidity box for low-temperature drying of high-moisture samples, which comprises a box body, and a control system, a temperature adjusting system and a humidity adjusting system which are arranged in the box body, and the temperature adjusting system and the humidity adjusting system are respectively connected with the control system; each dehumidification structure comprises a through pipe, a first sealing plug, a second sealing plug and a molecular sieve, a plurality of holes are formed in the outer wall of each through pipe, one end of each through pipe penetrates through the top of the box body and is plugged by the first sealing plug, the other end of each through pipe penetrates through the bottom of the box body and is plugged by the second sealing plug, and the molecular sieves are contained in the through pipes. Moisture in the environment in the