Cylindrical hydroxyl generator with difficult-to-break anode

The cylindrical hydroxyl generator comprises a cylindrical cathode shell and an anode column which is located in the cylindrical cathode shell and coincides with the central axis of the cylindrical cathode shell, a plurality of shelving blocks are arranged on the inner wall of the cylindrical cathode shell, a water inlet and a water outlet are formed in the wall body of the cylindrical cathode shell, and the anode column is located in the cylindrical cathode shell and coincides with the central axis of the cylindrical cathode shell. The water inlet is located below the shelving block, the water outlet is located above the shelving block, an insulating mesh plate is shelved at the shelving block, the anode column is fixed on the insulating mesh plate, a plurality of aeration pipes are further arranged below the insulating mesh plate, the anode column is sleeved with a semi-insulating sleeve, and the semi-insulating sleeve and the water outlet are located at the same height. The semi-insulating sleeve is arrang