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We present the analysis of the planetary nebula (PN) NGC 2371 around the[Wolf-Rayet] ([WR]) star WD 0722$+$295. Our Isaac Newton Telescope (INT)Intermediate Dispersion Spectrograph (IDS) spectra, in conjunction witharchival optical and UV images, unveil in unprecedented detail thehigh-ionisation of NGC 2371. The nebula has an apparent multipolar morphology,with two pairs of lobes protruding from a barrel-like central cavity, a pair ofdense low-ionisation knots misaligned with the symmetry axis embedded withinthe central cavity, and a high excitation halo mainly detected in He II. Theabundances from the barrel-like central cavity and dense knots agree withabundance determinations for other PNe with [WR]-type CSPNe. We suggest thatthe densest knots inside NGC 2371 are the oldest structures, remnant of a denseequatorial structure, whilst the main nebular shell and outer lobes resultedfrom a latter ejection that ended the stellar evolution. The analysis ofposition-velocity diagrams produced from our high-quality spectra suggests thatNGC 2371 has a bipolar shape with each lobe presenting a double-structureprotruding from a barrel-like central region. The analysis of the spectra of WD0722$+$295 results in similar stellar parameters as previously reported. Wecorroborate that the spectral sub-type corresponds with a [WO1] type.

Planetary nebulae with Wolf-Rayet-type central stars -- I. The case of the high-excitation NGC 2371