Abstract: An automatic machine (1) for citrus fruit juice extraction with functional elements allowing easier cleaning, which comprises a machine body (2) which contains a motor assembly and is provided with quick-coupling means for a front juice extraction chamber, which is constituted by a sort of tank (8) inside which an outer drum (23) is fitted so that it can rotate, a juice extraction and filtration drum (20) being fitted within the outer drum and being actuated rotatably concordantly with the outer drum at a short distance from its internal surface, the juice extraction and filtration drum having a reduced diameter and a perforated surface, with an axis which is aligned with an eccentric hole of the bottom of the tank for the passage of the motor shaft, means (24a, 24b, 25a, 25b) being provided for ressin the outer drum (23) elasticall a ainst the inner drum (20).