The present invention is a sleeve built in the support tube in the process of fastening the adjustment screw in the state that a household appliance such as a halogen lamp of a candle warmer, a motor of a fan, or a heater of a hot air fan is provided on the upper portion of the extension tube that enters and exits the support tube of the main body. It is to provide a height-adjusting device for a stand-type home appliance in which the reliability of a product is improved by not causing a scratch on the outer circumferential surface as the inner diameter is narrowed so as to be in close contact with the outer circumferential surface of the extension tube, so that the extension tube does not directly contact the adjusting screw. To this end, the present invention is provided with a hollow support tube at the rear of the main body, and a household appliance such as a halogen lamp of a candle warmer, a motor of an electric fan, or a heater of a hot air fan is provided at an upper end of the extension tube inserted into the support tube and lifted. In the height adjustment device of a stand-type home appliance equipped with an adjustment screw for restraining the extension tube to adjust the height of the home appliance, a hollow sleeve is provided at the top of the support tube； The extension tube penetrates the sleeve and fits into the support tube； The end of the adjustment screw is characterized in that the inner diameter of the sleeve is narrowed in the process of fastening the adjustment screw in a state corresponding to the sleeve so that the extension tube is fixedly fixed to the inside of the sleeve.본 고안은 본체의 지지관 내부로 출입되는 연장관의 상부에 캔들워머의 할로겐 램프, 선풍기의 모터 또는 열풍기의 히터 같은 가전제품이 구비된 상태에서 상기 지지관에 내장된 슬리브가 조절나사의 체결과정에서 내경이 좁혀지면서 상기 연장관의 외주면과 밀착되도록 함으로써, 상기 연장관이 상기 조절나사와 직접 닿지 않으므로 외주면에 흠집이 발생되지 않아 제품의 신뢰성이 향상되는 스탠드형 가전제품의 높이조절장치를 제공함에 있다.이를 위하여 본 고안은 본체 후방에 중공상의 지지관이 구비되고, 상기 지지관에 끼워져 승강되는 연장관의 상단에는 캔들워머의 할로겐 램프, 선풍기의 모터 또는 열풍기의 히터 같은 가전제품이 구비되며, 상기 지지관에는 상기 연장관을 구속하여
