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Unconventional topological quasiparticles have recently garnered significantattention in the realm of condensed matter physics. Here, based onfirst-principles calculations and symmetry analysis, we reveal the coexistenceof multiple types of interesting unconventional topological quasiparticles inthe phonon spectrum of the chiral crystal CsBe$_2$F$_5$. Specifically, weidentified eight entangled phonon bands in CsBe$_2$F$_5$, which give rise tovarious unconventional topological quasiparticles, including the spin-1 Weylpoint, the charge-2 Dirac point, the nodal surface, and the hourglass nodalloop. We demonstrate that these unconventional topological quasiparticles areprotected by crystal symmetry. We show that there are two large Fermi arcsconnecting projections of the bulk spin-1 Weyl point and charge-2 Dirac pointon the (001) surface and across the entire surface Brillouin zone. Our work notonly elucidates the intriguing topological properties of chiral crystals butalso provides an excellent material platform for exploring the fascinatingphysics associated with multiple types of unconventional topologicalquasiparticles.

Multiple types of unconventional quasiparticles in the chiral crystal CsBe$_2$F$_5$