PROBLEM TO BE SOLVED: To provide an air purifying system having a structure capable of subjecting an adsorbing filter medium for purification treatment to regeneration treatment without taking out the same, and air purifying equipment.SOLUTION: The air purifying systems 1A and 1B have air intake parts 2 for sucking air to take in the same and purification treatment parts 3 for introducing the air taken in by the air intake parts 2 to subject the same to purification treatment. Each of the purification treatment parts 3 has a case body 4 provided with an air discharge port 49 and the outer and inner cylinders incorporated in the case body 4 and the space between the inner and outer cylinders is filled with the adsorbing filter medium detachable by heating. Each of the air intake parts 2 has the air sucking passage communicating with the air introducing space of each of the purification treatment parts 3 and a fan 21 is arranged in the air sucking passage while a motor 22 for driving the fan 21 to produce the air suction force in the air suction passage is arranged out of the air suction passage and the inlet part 23 of the air suction passage has the connection pipe 10, which communicates with the hot air outlet 81 of a hot air generator 8, formed thereto in a connectable manner.