Abstract: An inflatable and deflatable air pump is provided. The inflatable and deflatable air pump includes a panel (11), a panel cover (12) matched with the panel (11), an air chamber (13) installed inside of the panel cover (12), a motor (14) connected with the air chamber (13), and a hollow cylindrical shifting switch (17). A plurality of air inlet-outlet holes (111) are formed on the panel (11), a vent valve (121) is disposed on the panel cover (12), an impeller (131) is disposed in the air chamber (13) and is connected thereto with a rotating shaft (141) of the motor (14), and two air chamber holes (1321, 1322) are formed on the air chamber (13).