High-pressure heater capable of preventing water leakage at joint

The utility model relates to the technical field of heaters, and discloses a high-pressure heater capable of preventing water leakage at a joint, which comprises a protection mechanism, a connecting mechanism and a supporting mechanism, the connecting mechanism is positioned on the right side of the protection mechanism, the supporting mechanism is positioned at the lower end of the protection mechanism, and the supporting mechanism is positioned at the lower end of the connecting mechanism. According to the high-pressure heater capable of preventing water leakage at the joint, a sealing gasket of a U-shaped structure is arranged at the inner end of a clamping groove in the inner end of a connecting block, so that when a mounting block is connected with the connecting block, the sealing block corresponds to the interior of the sealing gasket in the clamping groove, and the mounting block is wrapped by the sealing gasket, so that the interior and exterior of the joint of the mounting block and the connecting b